absconder noun a fugitive who runs away and hides to avoid arrest or prosecution
accroides noun an alcohol-soluble resin from Australian trees
acidophil noun an organism that thrives in a relatively acid environment
adenoidal adjective of or pertaining to the adenoids
adenosine noun (biochemistry) a nucleoside that is a structural component of nucleic …
adiposity noun having the property of containing fat
aepyornis noun huge (to 9 ft.) extinct flightless bird of Madagascar
aglaonema noun climbing herbs of southeastern Asia having thick fleshy oblong leaves …
alveolate adjective pitted with cell-like cavities (as a honeycomb)
ambrosial adjective extremely pleasing to the taste
ambrosian adjective of or by or relating to Saint Ambrose
anabolism noun the synthesis in living organisms of more complex substances (e.g., li…
analogist noun someone who looks for analogies or who reasons by analogy
analogous adjective similar or equivalent in some respects though otherwise dissimilar
anatolian noun an extinct branch of the Indo-European family of languages known from …
anchorage noun the condition of being secured to a base
anchorite noun one retired from society for religious reasons
anchorman noun a television reporter who coordinates a broadcast to which several cor…
androgyne noun one having both male and female sexual characteristics and organs
androgyny noun showing characteristics of both sexes
andromeda noun broad-leaved evergreen Asiatic shrub with glossy leaves and drooping c…
angiocarp noun tree bearing fruit enclosed in a shell or involucre or husk
angiogram noun an X-ray representation of blood vessels made after the injection of a…
angiology noun the branch of medical science that studies the blood and lymph vessels…
anglophil noun an admirer of England and things English
animosity noun a feeling of ill will arousing active hostility
anisogamy noun (biology) reproduction by the union or fusion of two differing gametes…
anthology noun a collection of selected literary passages
anthozoan noun sessile marine coelenterates including solitary and colonial polyps
anxiously adverb with anxiety or apprehension
aphrodite noun goddess of love and beauty and daughter of Zeus in ancient mythology
apologise verb defend, explain, clear away, or make excuses for by reasoning
apologist noun a person who argues to defend or justify some policy or institution
apologize verb acknowledge faults or shortcomings or failing
approbate verb approve or sanction officially
approving adjective expressing or manifesting praise or approval
aragonite noun a mineral form of crystalline calcium carbonate
arccosine noun the inverse function of the cosine
arizonian noun a native or resident of Arizona
ashtoreth noun an ancient Phoenician goddess of love and fertility
astrocyte noun comparatively large neuroglial cell
astrodome noun a transparent dome on top of an airplane where the navigator can make …
astrogate verb guide in interplanetary travel
astroglia noun tissue consisting of large stellate neuroglial cells
astrology noun a pseudoscience claiming divination by the positions of the planets an…
astronaut noun a person trained to travel in a spacecraft
astronomy noun the branch of physics that studies celestial bodies and the universe a…
auctorial adjective cause to have too great a population
audiogram noun a graphical representation of a person's auditory sensitivity to sound
authorial adjective cause to have too great a population
authorise verb give or delegate power or authority to
authority noun the power or right to give orders or make decisions
authorize verb grant authorization or clearance for
ayatollah noun a high-ranking Shiite religious leader who is regarded as an authority…
balconied adjective having balconies or a balcony
balloting noun a choice that is made by counting the number of people in favor of eac…
bamboozle verb conceal one's true motives from especially by elaborately feigning goo…
bandoleer noun a broad cartridge belt worn over the shoulder by soldiers
bandolier noun a broad cartridge belt worn over the shoulder by soldiers
barrowful noun the quantity that a barrow will hold
batholite noun large mass of intrusive igneous rock believed to have solidified deep …
batholith noun large mass of intrusive igneous rock believed to have solidified deep …
befooling noun derision of someone or something as foolish or absurd or inconsistent
bellowing noun a very loud utterance (like the sound of an animal)
bentonite noun an absorbent aluminum silicate clay formed from volcanic ash
bignoniad noun any woody plant of the family Bignoniaceae
billowing adjective characterized by great swelling waves or surges
biologism noun use of biological principles in explaining human especially social beh…
biologist noun (biology) a scientist who studies living organisms
bionomics noun the branch of biology concerned with the relations between organisms a…
bishopric noun the territorial jurisdiction of a bishop
booboisie noun class consisting of all those who are considered boobs
borrowing noun the appropriation (of ideas or words etc) from another source
boskopoid adjective belonging or relating to or resembling Boskop man
bostonian noun a native or resident of Boston
bromoform noun colorless liquid haloform CHBr3
burroughs noun United States writer noted for his works portraying the life of drug a…
buteonine adjective relating to or resembling a hawk of the genus Buteo
byproduct noun a secondary and sometimes unexpected consequence
callosity noun an area of skin that is thick or hard from continual pressure or frict…
cambodian adjective of or relating to or characteristic of Cambodia or its people or langu…
cannonade verb attack with cannons or artillery
cantonese noun the dialect of Chinese spoken in Canton and neighboring provinces and …
carbonado noun an inferior dark diamond used in industry for drilling and polishing
carbonous adjective relating to or consisting of or yielding carbon
carrousel noun a conveyer belt that carries luggage to be claimed by air travelers
cartonful noun the quantity contained in a carton
cartouche noun a cartridge (usually with paper casing)
caryopsis noun dry seed-like fruit produced by the cereal grasses: e.g. wheat, barley…
cassowary noun large black flightless bird of Australia and New Guinea having a horny…
censorial adjective belonging or relating to a censor or a censor's functions
censoring noun counterintelligence achieved by banning or deleting any information of…
ceylonese adjective of or relating to Sri Lanka (formerly Ceylon) or its people or culture
ceylonite noun a dark-colored spinel containing iron
chamomile noun Eurasian plant with apple-scented foliage and white-rayed flowers and …
chamosite noun a greenish grey or black silicate of iron and aluminum
chatoyant adjective varying in color when seen in different lights or from different angles
chelonian adjective of or relating to or resembling or being a turtle or tortoise
chilopoda noun arthropods having the trunk composed of numerous somites each bearing …
chinookan noun a Penutian language spoken by the Chinook
chirology noun telling fortunes by lines on the palm of the hand
chiropody noun the branch of medicine concerned with the feet
chocolate noun a beverage made from cocoa powder and milk and sugar
choloepus noun a genus of Megalonychidae consisting of the two-toed sloth
chthonian adjective dwelling beneath the surface of the earth
clamoring noun loud and persistent outcry from many people
clamorous adjective conspicuously and offensively loud
clitocybe noun a genus of agarics with white to pale yellow spore deposits and fleshy…
cocooning noun retreating to the seclusion of your home (as for privacy or escape)
coelogyne noun any of various orchids of the genus Coelogyne with: clusters of fragra…
coelostat noun optical device used to follow the path of a celestial body and reflect…
coenobite noun a member of a religious order living in common
collocate verb have a strong tendency to occur side by side
collodion noun a colorless syrupy solution of pyroxylin in ether and alcohol
colloidal adjective of or relating to or having the properties of a colloid
collotype noun a photomechanical printing process that uses a glass plate with a gela…
colpocele noun hernia projecting into the vagina
comforted adjective made comfortable or more comfortable in a time of distress
comforter noun commiserates with someone who has had misfortune
commodore noun a commissioned naval officer who ranks above a captain and below a rea…
commotion noun a disorderly outburst or tumult
composing noun the spatial property resulting from the arrangement of parts in relati…
composite adjective consisting of separate interconnected parts
composure noun steadiness of mind under stress
concordat noun a signed written agreement between two or more parties (nations) to pe…
condolent adjective expressing sympathy with a person who experienced the death of a loved…
congolese adjective of or relating to or characteristic of the Congo region or its people
conjoined adjective consisting of two or more associated entities
consoling adjective affording comfort or solace
consonant adjective involving or characterized by harmony
contorted adjective twisted (especially as in pain or struggle)
coreopsis noun any of numerous plants of the genus Coreopsis having a profusion of sh…
cormorant noun large voracious dark-colored long-necked seabird with a distensible po…
corporate adjective of or belonging to a corporation
corporeal adjective having material or physical form or substance
corposant noun an electrical discharge accompanied by ionization of surrounding atmos…
corrosion noun a state of deterioration in metals caused by oxidation or chemical act…
corrosive adjective of a substance, especially a strong acid
coscoroba noun large white South American bird intermediate in some respects between …
cosmogeny noun the branch of astrophysics that studies the origin and evolution and s…
cosmogony noun the branch of astrophysics that studies the origin and evolution and s…
cosmology noun the metaphysical study of the origin and nature of the universe
cosmonaut noun a person trained to travel in a spacecraft
cosponsor verb sponsor together with another sponsor
crocodile noun large voracious aquatic reptile having a long snout with massive jaws …
crotonbug noun small light-brown cockroach brought to United States from Europe
cuckoldom noun the state of a husband whose wife has committed adultery
cuckoldry noun the practice of making cuckolds
curiosity noun a state in which you want to learn more about something
curiously adverb in a manner differing from the usual or expected
cursorial adjective (of limbs and feet) adapted for running
custodial adjective providing protective supervision
custodian noun one having charge of buildings or grounds or animals
customary adjective in accordance with convention or custom
cycloloma noun a caryophyllaceous genus of the family Chenopodiaceae
cyclopean adjective of or relating to or resembling the Cyclops
cyclorama noun a picture (or series of pictures) representing a continuous scene
cyclotron noun an accelerator that imparts energies of several million electron-volts…
cyrtomium noun small genus of tropical Asiatic greenhouse ferns
cystocele noun hernia in which the urinary bladder protrudes through the wall of the …
cystolith noun a calculus formed in the bladder
daltonism noun dichromacy characterized by a lowered sensitivity to green light resul…
defroster noun heater that removes ice or frost (as from a windshield or a refrigerat…
deodorant noun a toiletry applied to the skin in order to mask unpleasant odors
despoiled adjective having been robbed and destroyed by force and violence
despoiler noun someone who takes spoils or plunder (as in war)
despotism noun dominance through threat of punishment and violence
diabolise verb turn into a devil or make devilish
diabolism noun a belief in and reverence for devils (especially Satan)
diabolist noun an adherent of Satan or Satanism
diabolize verb turn into a devil or make devilish
dianoetic adjective proceeding to a conclusion by reason or argument rather than intuition
diatomite noun a light soil consisting of siliceous diatom remains and often used as …
diazonium noun the univalent cation R-N:N- (where R is an aromatic hydrocarbon)
diazotize verb convert (an amine) into a diazo compound
dichondra noun a creeping perennial herb with hairy stems and orbicular to reniform l…
diplomate noun medical specialist whose competence has been certified by a diploma gr…
diplopoda noun arthropods having the body composed of numerous double somites each wi…
diplotene noun the fourth stage of the prophase of meiosis
discoidal adjective having a flat circular shape
discolour verb change color, often in an undesired manner
discourse verb to consider or examine in speech or writing
discovery noun the act of discovering something
disjoined adjective have the connection undone
dissolute adjective unrestrained by convention or morality
dissolved adjective (of solid matter) reduced to a liquid form
dissolver noun a liquid substance capable of dissolving other substances
dissonant adjective characterized by musical dissonance
distorted adjective so badly formed or out of shape as to be ugly
dobsonfly noun large soft-bodied insect having long slender mandibles in the male
doctorate noun one of the highest earned academic degrees conferred by a university
doctorial adjective of or relating to a doctor or doctorate
draconian adjective of or relating to Draco or his harsh code of laws
dragonfly noun slender-bodied non-stinging insect having iridescent wings that are ou…
dubiously adverb in a questionable and dubious manner
dystopian adjective of or pertaining to or resembling a dystopia
ecologist noun a biologist who studies the relation between organisms and their envir…
economics noun the branch of social science that deals with the production and distri…
economise verb spend sparingly, avoid the waste of
economist noun an expert in the science of economics
editorial adjective of or relating to an article stating opinions or giving perspectives
elaborate verb add details, as to an account or idea
embrocate verb administer an oil or ointment to
embroiled adjective deeply involved especially in something complicated
emulously adverb in a competitively imitative manner
enclosing noun the act of enclosing something inside something else
enclosure noun a structure consisting of an area that has been enclosed for some purp…
engrossed adjective giving or marked by complete attention to
epilobium noun large widely distributed genus of herbs and subshrubs of especially we…
epitomise verb embody the essential characteristics of or be a typical example of
epitomize verb embody the essential characteristics of or be a typical example of
epizootic adjective (of animals) epidemic among animals of a single kind within a particul…
espionage noun the systematic use of spies to get military or political secrets
ethiopian adjective of or relating to or characteristic of Ethiopia or its people or langu…
ethnology noun the branch of anthropology that deals with the division of humankind i…
euphonium noun a bass horn (brass wind instrument) that is the tenor of the tuba family
euphorbia noun type genus of the Euphorbiaceae: very large genus of diverse plants al…
eutrophic adjective (ecology) of a lake or other body of water rich in nutrients and subje…
evaporate verb lose or cause to lose liquid by vaporization leaving a more concentrat…
evaporite noun the sediment that is left after the evaporation of seawater
exodontia noun the branch of dentistry dealing with extraction of teeth
exodontic adjective of or relating to or involving exodontics
exploited adjective developed or used to greatest advantage
exploiter noun a person who uses something or someone selfishly or unethically
explosion noun a violent release of energy caused by a chemical or nuclear reaction
explosive adjective serving to explode or characterized by explosion or sudden outburst
extrovert adjective being concerned with the social and physical environment
factorial adjective of or relating to factorials
factoring noun (mathematics) the resolution of an entity into factors such that when …
factorize verb resolve (a polynomial) into factors
faggoting noun embroidery in which groups of parallel threads are tied together with …
falconine adjective relating to or resembling a falcon
farrowing noun the production of a litter of pigs
fatuously adverb vacuously or complacently and unconsciously foolish
faveolate adjective pitted with cell-like cavities (as a honeycomb)
flavonoid noun any of a large class of plant pigments having a chemical structure bas…
flavoring noun something added to food primarily for the savor it imparts
flavourer noun something added to food primarily for the savor it imparts
foliolate adjective (often used as a combining form) having leaflets (compound leaves) or …
followers noun a group of followers or enthusiasts
following adjective about to be mentioned or specified
forgotten adjective not noticed inadvertently
fossorial adjective (of limbs and feet) adapted for digging
frijolito noun shrub or small tree having pinnate leaves poisonous to livestock and d…
frivolous adjective not serious in content or attitude or behavior
furiously adverb (of the elements) in a wild and stormy manner
garrotter noun someone who kills by strangling
gibbosity noun something that bulges out or is protuberant or projects from its surro…
glamorous adjective having an air of allure, romance and excitement
globosity noun the roundness of a 3-dimensional object
glucoside noun a glycoside derived from glucose
glycoside noun a group of compounds derived from monosaccharides
godmother noun any woman who serves as a sponsor for a child at baptism
gondolier noun a (Venetian) boatman who propels a gondola
gongorism noun an affected elegance of style that was introduced into Spanish literat…
gongorist noun a practitioner of the affected elegant style of the Spanish poet Gongora
gorgonian noun corals having a horny or calcareous branching skeleton
gregorian adjective of or relating to Pope Gregory I or to the plainsong chants of the Rom…
gunpowder noun a mixture of potassium nitrate, charcoal, and sulfur in a 75:15:10 rat…
gymnogyps noun containing solely the California condor
hadrosaur noun any of numerous large bipedal ornithischian dinosaurs having a horny d…
haemostat noun a surgical instrument that stops bleeding by clamping the blood vessel
hagiology noun literature narrating the lives (and legends) of the saints
halloween noun the evening before All Saints' Day
hallowmas noun a Christian feast day honoring all the saints
haploidic adjective of a cell or organism having a single set of chromosomes
haplotype noun (genetics) a combination of alleles (for different genes) that are loc…
harborage noun (nautical) a place of refuge (as for a ship)
harmonica noun a small rectangular free-reed instrument having a row of free reeds se…
harmonium noun a free-reed instrument in which air is forced through the reeds by bel…
heliogram noun a message transmitted by means of the sun's rays
heliopsis noun any North American shrubby perennial herb of the genus Heliopsis havin…
heliotype noun duplicator consisting of a gelatin plate from which ink can be taken t…
heliozoan noun protozoa with spherical bodies and stiff radiating pseudopods
hessonite noun a garnet ranging in color from yellow to brown
histogram noun a bar chart representing a frequency distribution
histology noun the branch of biology that studies the microscopic structure of animal…
historian noun a person who is an authority on history and who studies it and writes …
historied adjective having an illustrious past
hobgoblin noun (folklore) a small grotesque supernatural creature that makes trouble …
hoodooism noun a religious cult practiced chiefly in Caribbean countries (especially …
hydrocele noun disorder in which serous fluid accumulates in a body sac (especially i…
hydrofoil noun a device consisting of a flat or curved piece (as a metal plate) so th…
hydrolize verb make a compound react with water and undergo hydrolysis
hydrology noun the branch of geology that studies water on the earth and in the atmos…
hydroxide noun a compound of an oxide with water
hydrozoan noun colonial coelenterates having the polyp phase dominant
iconology noun the branch of art history that studies visual images and their symboli…
imbroglio noun an intricate and confusing interpersonal or political situation
improving adjective getting higher or more vigorous
inamorata noun a woman with whom you are in love or have an intimate relationship
inamorato noun a man with whom you are in love or have an intimate relationship
inclosure noun something (usually a supporting document) that is enclosed in an envel…
ingrowing adjective growing abnormally into the flesh
introduce verb cause to come to know personally
introitus noun entrance or opening to a hollow organ or tube (especially the vaginal …
introject verb incorporate (attitudes or ideas) into one's personality unconsciously
inviolate adjective (of a woman) having the hymen unbroken
inwrought adjective having a decorative pattern worked or woven in
iridoncus noun swelling of the iris of the eye
iridotomy noun a surgical procedure that makes an incision in the iris of the eye in …
jobholder noun an employee who holds a regular job
karyotype noun the appearance of the chromosomal makeup of a somatic cell in an indiv…
lampooner noun mimics literary or musical style for comic effect
landowner noun a holder or proprietor of land
langobard noun a member of a Germanic people who invaded northern Italy in the 6th ce…
langouste noun warm-water lobsters without claws
leftovers noun food remaining from a previous meal
legionary noun a soldier who is a member of a legion (especially the French Foreign L…
leptotene noun the first stage of the prophase of meiosis
leucocyte noun blood cells that engulf and digest bacteria and fungi
leucothoe noun any plant of the genus Leucothoe
leucotomy noun surgical interruption of nerve tracts to and from the frontal lobe of …
leukocyte noun blood cells that engulf and digest bacteria and fungi
leukotomy noun surgical interruption of nerve tracts to and from the frontal lobe of …
limnology noun the scientific study of bodies of fresh water for their biological and…
liquorice noun deep-rooted coarse-textured plant native to the Mediterranean region h…
lithology noun the branch of geology that studies rocks: their origin and formation a…
lithotomy noun surgical removal of a stone (calculus)
macrocosm noun everything that exists anywhere
macrocyte noun abnormally large red blood cell (associated with pernicious anemia)
malformed adjective so badly formed or out of shape as to be ugly
mammogram noun X-ray film of the soft tissue of the breast
marmoreal adjective of or relating to or characteristic of marble
marmorean adjective of or relating to or characteristic of marble
mastodont noun extinct elephant-like mammal that flourished worldwide from Miocene th…
mastoidal adjective relating to or resembling a nipple
mastopexy noun evaluate by comparing with a standard
mausoleum noun a large burial chamber, usually above ground
melbourne noun a resort town in east central Florida
meliorism noun the belief that the world can be made better by human effort
meliorist noun a disputant who advocates reform
mellowing noun the process of becoming mellow
melpomene noun (Greek mythology) the Muse of tragedy
mennonite noun a member of an Anabaptist movement in Holland noted for its simplicity…
meteorite noun stony or metallic object that is the remains of a meteoroid that has r…
meteoroid noun (astronomy) any of the small solid extraterrestrial bodies that hits t…
methodism noun the religious beliefs and practices of Methodists characterized by con…
methodist adjective of or pertaining to or characteristic of the branch of Protestantism a…
metrology noun the scientific study of measurement
metronome noun clicking pendulum indicates the exact tempo of a piece of music
mezzotint noun print produced by an engraving that has been scraped to represent ligh…
microbial adjective of or involving or caused by or being microbes
microchip noun electronic equipment consisting of a small crystal of a silicon semico…
microcode noun (computer science) coded instructions that are stored permanently in r…
microcopy verb photocopy printed or other graphic matter so that it is reduced in size
microcosm noun a miniature model of something
microcyte noun an abnormally small red blood cell (less than 5 microns in diameter)
microglia noun neuroglial tissue of mesodermal origin that can become phagocytic
microgram noun one millionth (1/1,000,000) gram
micropyle noun minute opening in the wall of an ovule through which the pollen tube e…
microsome noun a tiny granule in the cytoplasm that is where protein synthesis takes …
microtome noun scientific instrument that cuts thin slices of something for microscop…
microvolt noun a unit of potential equal to one millionth of a volt
microwave verb cook or heat in a microwave oven
mnemonics noun a method or system for improving the memory
mnemonist noun an expert in the use of mnemonics
mnemosyne noun (Greek mythology) the Titaness who was goddess of memory
mongolian adjective of or relating to the modern Mongolian People's Republic
mongolism noun a congenital disorder caused by having an extra 21st chromosome
mongoloid adjective characteristic of or resembling a Mongol
mormonism noun the doctrines and practices of the Mormon Church based on the Book of …
muscoidea noun two-winged flies especially the families: Muscidae
muscovite adjective of or relating to the residents of Moscow
muskogean noun a member of any of the peoples formerly living in southeastern United …
mussolini noun Italian fascist dictator (1883-1945)
myelocyte noun an immature leukocyte normally found in bone marrow
myomorpha noun true rats and mice and related rodents
narrowing adjective becoming gradually narrower
natrolite noun a group of minerals of the zeolite family consisting of a hydrous sili…
neocortex noun the cortical part of the neencephalon
neologism noun a newly invented word or phrase
neologist noun a lexicographer of new words and expressions
nephology noun the branch of meteorology that studies clouds and cloud formation
nervously adverb in an anxiously nervous manner
nestorian adjective relating to Nestorius or Nestorianism
neuroglia noun sustentacular tissue that surrounds and supports neurons in the centra…
neurology noun the branch of medical science that deals with the nervous system
neuropile noun the complex network of unmyelinated axones, dendrites, and glial branc…
newtonian adjective of or relating to or inspired by Sir Isaac Newton or his science
nilpotent adjective equal to zero when raised to a certain power
nipponese adjective of or relating to or characteristic of Japan or its people or their cu…
nonkosher adjective not conforming to dietary laws
nonmotile adjective (of spores or microorganisms) not capable of movement
nothosaur noun extinct marine reptile with longer more slender limbs than plesiosaurs…
obviously adverb unmistakably (`plain' is often used informally for `plainly')
oligocene noun from 40 million to 25 million years ago
oligopoly noun (economics) a market in which control over the supply of a commodity i…
onopordon noun a genus of Eurasian herbs of the family Compositae with prickly foliag…
orchotomy noun surgical incision into the testis to obtain material for analysis (as …
oregonian noun a native or resident of Oregon
orthodoxy noun the quality of being orthodox (especially in religion)
orthopnea noun form of dyspnea in which the person can breathe comfortably only when …
orthopter noun heavier-than-air craft that is propelled by the flapping of wings
orthoptic adjective of or relating to normal binocular vision
osteology noun the branch of anatomy that studies the bones of the vertebrate skeleton
osteopath noun a therapist who manipulates the skeleton and muscles
ostrogoth noun a member of the eastern group of Goths who created a kingdom in northe…
otologist noun a physician who specializes in the ear and its diseases
outdoorsy adjective characteristic of or suitable to outdoor life
paleocene noun from 63 million to 58 million years ago
paleolith noun a stone tool from the Paleolithic age
paleology noun the study of (especially prehistoric) antiquities
paleozoic adjective of or relating to or denoting the Paleozoic era
pantomime verb act out without words but with gestures and bodily movements only
pantothen noun a vitamin of the vitamin B complex that performs an important role in …
parroquet noun any of numerous small slender long-tailed parrots
parsonage noun an official residence provided by a church for its parson or vicar or …
pastorale noun a musical composition that evokes rural life
pathology noun the branch of medical science that studies the causes and nature and e…
patroclus noun (Greek mythology) a friend of Achilles who was killed in the Trojan War
patrolman noun a policeman who patrols a given region
patrology noun the writings of the early Church Fathers
patroness noun a woman who is a patron or the wife of a patron
pauropoda noun an obscure class of minute arthropods with branched antennae and 8 to …
pavlovian adjective of or relating to Ivan Pavlov or his experiments
pennoncel noun a small pennant borne on a lance
pentothal noun barbiturate that is a hygroscopic powder (trade name Pentothal) that i…
pentoxide noun an oxide containing five atoms of oxygen in the molecule
percoidea noun in some classifications nearly or exactly equivalent to the Perciforme…
percolate verb permeate or penetrate gradually
perforate verb make a hole into or between, as for ease of separation
performer noun an entertainer who performs a dramatic or musical work for an audience
personate verb pretend to be someone you are not
personnel noun group of people willing to obey orders
petroleum noun a dark oil consisting mainly of hydrocarbons
petrology noun the branch of geology that studies rocks: their origin and formation a…
phagocyte noun a cell that engulfs and digests debris and invading microorganisms
phenotype noun what an organism looks like as a consequence of the interaction of its…
pheromone noun a chemical substance secreted externally by some animals (especially i…
philology noun the humanistic study of language and literature
phonogram noun any written symbol standing for a sound or syllable or morpheme or word
phonology noun the study of the sound system of a given language and the analysis and…
phoronida noun small phylum of wormlike marine animals
photocell noun a transducer used to detect and measure light and other radiations
photostat verb make a copy by means of a Photostat device
phycology noun the branch of botany that studies algae
phylogeny noun (biology) the sequence of events involved in the evolutionary developm…
phytology noun the branch of biology that studies plants
pictorial adjective pertaining to or consisting of pictures
pistoleer noun someone armed with a pistol (especially a soldier so armed)
placoderm noun fish-like vertebrate with bony plates on head and upper body
platonism noun (philosophy) the philosophical doctrine that abstract concepts exist i…
plutocrat noun someone who exercises power by virtue of wealth
plutonian adjective of or relating to or characteristic of Hades or Tartarus
plutonium noun a solid silvery grey radioactive transuranic element whose atoms can b…
poenology noun the branch of criminology concerned with prison management and prisone…
poisoning noun the physiological state produced by a poison or other toxic substance
poisonous adjective having the qualities or effects of a poison
pomposity noun lack of elegance as a consequence of being pompous and puffed up with …
potboiler noun a literary composition of poor quality that was written quickly to mak…
potholder noun an insulated pad for holding hot pots
potpourri noun a collection containing a variety of sorts of things
precocial adjective (of hatchlings) covered with down and having eyes open
precocity noun intelligence achieved far ahead of normal developmental schedules
precooked adjective cooked partially or completely beforehand
pretorial adjective of or relating to a Roman praetor
pretorian adjective of or relating to a Roman praetor
pretorium noun the tent of an ancient Roman general
proboscis noun the human nose (especially when it is large)
proconsul noun an official in a modern colony who has considerable administrative power
prolonged adjective relatively long in duration
promotion noun a message issued in behalf of some product or cause or idea or person …
promotive adjective tending to further or encourage
pronounce verb speak, pronounce, or utter in a certain way
proponent noun a person who pleads for a cause or propounds an idea
prosodion noun religious music used in a procession
protozoal adjective of or relating to the Protozoa
protozoan adjective of or relating to the Protozoa
protozoic adjective of or relating to the Protozoa
protozoon noun any of diverse minute acellular or unicellular organisms usually nonph…
provoking adjective causing or tending to cause anger or resentment
pterocles noun type genus of the Pteroclididae
pterosaur noun an extinct reptile of the Jurassic and Cretaceous having a bird-like b…
pulmonary adjective relating to or affecting the lungs
pulmonata noun large order of gastropods usually breathing by means of a lung-like sa…
purposive adjective having or showing or acting with a purpose or design
pyelogram noun an X ray of the kidneys and ureters
pythoness noun a witch with powers of divination
quixotism noun quixotic (romantic and impractical) behavior
radiogram noun a message transmitted by wireless telegraphy
radiology noun the branch of medical science dealing with the medical use of X-rays o…
ragsorter noun a worker who sorts rags and old clothing for new uses (as in papermaki…
rancorous adjective showing deep-seated resentment
raptorial adjective relating to or characteristic of birds of prey
rationale noun (law) an explanation of the fundamental reasons (especially an explana…
rauwolfia noun any of several alkaloids extracted from the shrub Rauwolfia serpentina
reasoning adjective endowed with the capacity to reason
reckoning noun problem solving that involves numbers or quantities
rectocele noun protrusion or herniation of the rectum into the vagina
rectorate noun the office or station of a rector
reproving adjective expressing reproof or reproach especially as a corrective
retrousse adjective (used of noses) turned up at the end
rhizobium noun the type genus of Rhizobiaceae
rhizoidal adjective of or relating to a rhizoid
rhizopoda noun creeping protozoans: amoebas and foraminifers
rhizotomy noun surgical procedure in which spinal nerve roots are cut
rhodolite noun a red or pink variety of garnet used as a gemstone
rhodonite noun a pink or red mineral consisting of crystalline manganese silicate
rhodopsin noun a red photopigment in the retinal rods of vertebrates
riotously adverb in a tumultuous and riotous manner
ruinously adverb in a ruinous manner or to a ruinous degree
santolina noun genus of Mediterranean subshrubs with rayless flower heads
saprolite noun a deposit of clay and disintegrating rock that is found in its origina…
saprozoic adjective (of certain animals) feeding on dead or decaying animal matter
sarcodina noun characterized by the formation of pseudopods for locomotion and taking…
sarcomere noun one of the segments into which a myofibril is divided
sarcoptes noun type genus of the family Sarcoptidae: itch mites
sarcoptid noun whitish mites that attack the skin of humans and other animals
sarcosine noun a sweetish crystalline amino acid
sarcosome noun a large mitochondrion in a striated muscle fiber
sartorial adjective of or relating to the sartorius muscle
sartorius noun a muscle in the thigh that helps to rotate the leg into the sitting po…
scatology noun a preoccupation with obscenity (especially that dealing with excrement…
schnorkel noun air passage provided by a retractable device containing intake and exh…
schnorrer noun (Yiddish) a scrounger who takes advantage of the generosity of others
schoolbag noun a bag for carrying school books and supplies
schoolman noun a scholar in one of the universities of the Middle Ages
seasoning noun something added to food primarily for the savor it imparts
sectorial adjective relating to or resembling a sector
semiology noun (philosophy) a philosophical theory of the functions of signs and symb…
semiotics noun (philosophy) a philosophical theory of the functions of signs and symb…
seniority noun higher rank than that of others especially by reason of longer service
sensorial adjective involving or derived from the senses
sensorium noun the areas of the brain that process and register incoming sensory info…
sermonise verb speak as if delivering a sermon
sermonize verb speak as if delivering a sermon
shadowbox verb go through boxing motions without an opponent
shadowing noun the act of following someone secretly
shemozzle noun (Yiddish) a confused situation or affair
shipowner noun someone who owns a ship or a share in a ship
sialolith noun a stone formed in the salivary gland
sigmoidal adjective of or relating to the sigmoid flexure in the large intestine
signorina noun an Italian courtesy title for an unmarried woman
skyrocket verb shoot up abruptly, like a rocket
slivovitz noun a colorless plum brandy popular in the Balkans
sociology noun the study and classification of human societies
sociopath noun someone with a sociopathic personality
somnolent adjective inclined to or marked by drowsiness
sophocles noun one of the great tragedians of ancient Greece (496-406 BC)
sophomore adjective used of the second year in United States high school or college
sorrowing adjective sorrowful through loss or deprivation
spirodela noun minute aquatic herbs floating on the water surface consisting of a shi…
spirogram noun a recording of breathing made with a spirograph
spirogyra noun freshwater algae consisting of minute filaments containing spiral chlo…
sporocarp noun specialized leaf branch in certain aquatic ferns that encloses the sor…
sporophyl noun leaf in ferns and mosses that bears the sporangia
sporozoan noun parasitic spore-forming protozoan
stegosaur noun herbivorous ornithischian dinosaur with a row of bony plates along its…
steroidal adjective of or relating to steroid hormones or their effects
stuporous adjective stunned or confused and slow to react (as from blows or drunkenness or…
styrofoam noun a light resilient foam of polystyrene
subrogate verb substitute one creditor for another, as in the case where an insurance…
succotash noun fresh corn and lima beans with butter or cream
succourer noun someone who gives help in times of need or distress or difficulty
suctorial adjective adapted for sucking or clinging by suction
suffocate verb deprive of oxygen and prevent from breathing
summoning noun calling up supposed supernatural forces by spells and incantations
sunbonnet noun a large bonnet that shades the face
sundowner noun a tramp who habitually arrives at sundown
supported adjective sustained or maintained by aid (as distinct from physical support)
supporter noun a person who backs a politician or a team etc.
surrogate adjective providing or receiving nurture or parental care though not related by …
syllogism noun deductive reasoning in which a conclusion is derived from two premises
syllogist noun logician skilled in syllogistic reasoning
symbolise verb represent or identify by using a symbol
symbolism noun a system of symbols and symbolic representations
symbolist noun a member of an artistic movement that expressed ideas indirectly via s…
symbolize verb express indirectly by an image, form, or model
symbology noun the study or the use of symbols and symbolism
symposium noun a meeting or conference for the public discussion of some topic especi…
syncopate verb omit a sound or letter in a word
tachogram noun a graphical record of speed and distance produced by a tachograph
tamponade noun blockage or closure (as of a wound or body cavity) by (or as if by) a …
tamponage noun blockage or closure (as of a wound or body cavity) by (or as if by) a …
tautology noun (logic) a statement that is necessarily true
teleology noun (philosophy) a doctrine explaining phenomena by their ends or purposes
teleostei noun large diverse group of bony fishes
temporise verb draw out a discussion or process in order to gain time
temporize verb draw out a discussion or process in order to gain time
tentorium noun (anatomy) a fold of dura mater that covers the cerebellum and supports…
terrorise verb coerce by violence or with threats
terrorism noun the calculated use of violence (or the threat of violence) against civ…
terrorist noun a radical who employs terror as a political weapon
terrorize verb coerce by violence or with threats
tetroxide noun an oxide containing four atoms of oxygen in the molecule
teutonist noun a specialist in the history of the Teutonic people or language (especi…
thecodont noun presumably in the common ancestral line to dinosaurs and crocodiles an…
theropoda noun carnivorous saurischian dinosaurs with short forelimbs
threonine noun a colorless crystalline amino acid found in protein
thyroidal adjective of or relating to the thyroid gland
thyronine noun a phenolic amino acid of which thyroxine is a derivative
thyroxine noun hormone produced by the thyroid glands to regulate metabolism by contr…
tonsorial adjective of or relating to barbers and barbering
tremolite noun a white or pale green mineral (calcium magnesium silicate) of the amph…
treponema noun spirochete that causes disease in humans (e.g. syphilis and yaws)
tribology noun the branch of engineering that deals with the interaction of surfaces …
tricolour noun a flag having three colored stripes (especially the French flag)
trifolium noun any leguminous plant having leaves divided into three leaflets
trilobate adjective (of a leaf shape) divided into three lobes
trilobite noun an extinct arthropod that was abundant in Paleozoic times
turboprop noun an airplane with an external propeller that is driven by a turbojet en…
unadorned adjective not decorated with something to increase its beauty or distinction
unclouded adjective (of sound or color) free from anything that dulls or dims
uncropped adjective not used for growing crops
uncrowded adjective having or allowing sufficient room
uncrowned adjective not having an (artificial) crown on a tooth
unfrosted adjective (of glass) lacking a frosted coating
ungroomed adjective not neat and smart in appearance
unknowing adjective unaware because of a lack of relevant information or knowledge
unpeopled adjective with no people living there
unspotted adjective without soil or spot or stain
unthought adjective so unexpected as to have not been imagined
uranology noun the branch of physics that studies celestial bodies and the universe a…
vacuolate adjective formed into or containing one or more vacuoles or small membrane-bound…
valvotomy noun incision into a stenosed cardiac valve to relieve the obstruction
vancouver noun English navigator remembered for his exploration of the Pacific coast …
verbosity noun an expressive style that uses excessive or empty words
vermonter noun a native or resident of Vermont
victorian adjective of or relating to Queen Victoria of Great Britain or to the age in whi…
videodisc noun a digital recording (as of a movie) on an optical disk that can be pla…
videodisk noun a digital recording (as of a movie) on an optical disk that can be pla…
viscosity noun resistance of a liquid to shear forces (and hence to flow)
viscounty noun the dignity or rank or position of a viscount or viscountess
visionary adjective not practical or realizable
voodooism noun a religious cult practiced chiefly in Caribbean countries (especially …
walloping adjective (used informally) very large
warmonger noun a person who advocates war or warlike policies
wilsonian adjective of or relating to or suggestive of Woodrow Wilson
winnowing noun the act of separating grain from chaff
wisconsin noun a tributary of the Mississippi River in Wisconsin
xiphosura noun horseshoe crabs and extinct forms
yellowish adjective of the color intermediate between green and orange in the color spectrum
zirconium noun a lustrous grey strong metallic element resembling titanium
zoologist noun a specialist in the branch of biology dealing with animals