| bioluminescent | (adjective) (of living organisms) emitting light | - |
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| bioscience | (noun) any of the branches of natural science dealing with the structure and behavior of living organisms | Synonyms: life science |
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| bioscope | (noun) a kind of early movie projector | - |
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| (noun) a South African movie theater | - |
| biscuit | (noun) small round bread leavened with baking-powder or soda | - |
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| (noun) any of various small flat sweet cakes | Synonyms: cookie, cooky |
| blastodisc | (noun) a layer of cells on the inside of the blastula | Synonyms: blastoderm, germinal area, germinal disc |
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| borsch | (noun) a Russian or Polish soup usually containing beet juice as a foundation | Synonyms: borscht, borsh, borshch, borsht, bortsch |
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| borscht | (noun) a Russian or Polish soup usually containing beet juice as a foundation | Synonyms: borsch, borsh, borshch, borsht, bortsch |
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| bortsch | (noun) a Russian or Polish soup usually containing beet juice as a foundation | Synonyms: borsch, borscht, borsh, borshch, borsht |
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| bosc | (noun) greenish-yellow pear | - |
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| bronchoscope | (noun) a slender tubular instrument used to examine the bronchial tubes | - |
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| bronchoscopic | (adjective) of or relating to an instrument for examining the interior of the bronchi | - |
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| butterscotch | (noun) a hard brittle candy made with butter and brown sugar | - |
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| candescent | (adjective) glowing from great heat | - |
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| canescent | (adjective) of greyish white | - |
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| (adjective) covered with fine whitish hairs or down | Synonyms: hoary |
| cardiovascular | (adjective) of or pertaining to or involving the heart and blood vessels | - |
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| cascabel | (noun) a bell attached to a sleigh, or to the harness of a horse that is pulling a sleigh | Synonyms: sleigh bell |
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| cascade | (noun) a sudden downpour (as of tears or sparks etc) likened to a rain shower | Synonyms: shower |
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| (noun) a succession of stages or operations or processes or units | - |
| (noun) a small waterfall or series of small waterfalls | - |
| (verb) arrange (open windows) on a computer desktop so that they overlap each other, with the title bars visible | - |
| (verb) rush down in big quantities, like a cascade | Synonyms: cascade down |
| cascara | (noun) dried bark of the cascara buckthorn used as a laxative | Synonyms: cascara sagrada, chittam bark, chittem bark |
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| cascarilla | (noun) West Indian shrub with aromatic bark | Synonyms: Croton eluteria |
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| caulescent | (adjective) (of plants) producing a well-developed stem above ground | Synonyms: cauline, stemmed |
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| celioscopy | (noun) endoscopic examination of the abdomen through the abdominal wall | - |
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| cerebrovascular | (adjective) of or relating to the brain and the blood vessels that supply it | - |
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| cheiloschisis | (noun) a congenital cleft in the middle of the upper lip | Synonyms: cleft lip, harelip |
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| cheiloscopy | (noun) a forensic investigation technique that deals with identification of humans based on lip traces. | - |
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| chemiluminescence | (noun) luminescence resulting from a chemical reaction as the oxidation of luciferin in fireflies | - |
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| chemiluminescent | (adjective) relating to the phenomenon of chemiluminescence | - |
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| chiaroscuro | (noun) a monochrome picture made by using several different shades of the same color | - |
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| chronoscope | (noun) an instrument for accurate measurements of small intervals of time | - |
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| churrigueresco | (adjective) having elaborate symmetrical ornamentation | Synonyms: baroque, churrigueresque |
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| circumscribe | (verb) restrict or confine within limits | Synonyms: confine to, limit |
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| (verb) draw a line around | - |
| (verb) to draw a geometric figure around another figure so that the two are in contact but do not intersect | - |
| circumscribed | (adjective) subject to limits or subjected to limits | Synonyms: limited |
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| circumscription | (noun) the act of circumscribing | - |
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| cisco | (noun) important food fish of cold deep lakes of North America | Synonyms: Coregonus artedi, lake herring |
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| (noun) cold-water fish caught in Lake Superior and northward | Synonyms: lake herring |
| cityscape | (noun) painting depicting a city or urban area | - |
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| (noun) a viewpoint toward a city or other heavily populated area | - |
| coalesce | (verb) mix together different elements | Synonyms: blend, combine, commingle, conflate, flux, fuse, immix, meld, merge, mix |
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| (verb) fuse or cause to grow together | - |
| coalesced | (adjective) joined together into a whole | Synonyms: amalgamate, amalgamated, consolidated, fused |
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| coalescence | (noun) the union of diverse things into one body or form or group; the growing together of parts | Synonyms: coalescency, coalition, concretion, conglutination |
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| coalescency | (noun) the union of diverse things into one body or form or group; the growing together of parts | Synonyms: coalescence, coalition, concretion, conglutination |
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| coalescent | (adjective) growing together, fusing | Synonyms: coalescing |
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| coalescing | (adjective) growing together, fusing | Synonyms: coalescent |
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| cockscomb | (noun) the fleshy red crest on the head of the domestic fowl and other gallinaceous birds | Synonyms: comb, coxcomb |
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| (noun) a cap worn by court jesters; adorned with a strip of red | Synonyms: coxcomb |
| (noun) a conceited dandy who is overly impressed by his own accomplishments | Synonyms: coxcomb |
| (noun) garden annual with featherlike spikes of red or yellow flowers | Synonyms: Celosia argentea cristata, Celosia cristata, common cockscomb |
| cognoscente | (noun) an expert able to appreciate a field; especially in the fine arts | Synonyms: connoisseur |
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| cognoscible | (adjective) capable of being known | Synonyms: cognisable, cognizable, knowable |
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| colonoscope | (noun) an elongated fiberoptic endoscope for examining the entire colon from cecum to rectum | - |
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| colonoscopy | (noun) visual examination of the colon (with a colonoscope) from the cecum to the rectum; requires sedation | - |
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| colposcope | (noun) An endoscopic instrument that magnifies the epithelia of the vagina and cervix in vivo to allow direct observation and study of these tissues. | Synonyms: vaginoscope |
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| concupiscence | (noun) a desire for sexual intimacy | Synonyms: eros, physical attraction, sexual desire |
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| concupiscent | (adjective) vigorously passionate | Synonyms: lustful, lusty |
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| condescend | (verb) treat condescendingly | Synonyms: patronise, patronize |
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| (verb) do something that one considers to be below one's dignity | Synonyms: deign, descend |
| (verb) behave in a patronizing and condescending manner | - |
| (verb) debase oneself morally, act in an undignified, unworthy, or dishonorable way | Synonyms: lower oneself, stoop |
| condescending | (adjective) (used of behavior or attitude) characteristic of those who treat others with condescension | Synonyms: arch, patronising, patronizing |
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| condescendingly | (adverb) with condescension; in a patronizing manner | Synonyms: patronisingly, patronizingly |
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| condescendingness | (noun) affability to your inferiors and temporary disregard for differences of position or rank | Synonyms: condescension |
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| condescension | (noun) the trait of displaying arrogance by patronizing those considered inferior | Synonyms: disdainfulness, superciliousness |
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| (noun) affability to your inferiors and temporary disregard for differences of position or rank | Synonyms: condescendingness |
| (noun) a communication that indicates lack of respect by patronizing the recipient | Synonyms: disdain, patronage |
| confiscate | (adjective) surrendered as a penalty | Synonyms: forfeit, forfeited |
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| (verb) take temporary possession of as a security, by legal authority | Synonyms: attach, impound, seize, sequester |
| confiscation | (noun) seizure by the government | Synonyms: arrogation |
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| conscience | (noun) conformity to one's own sense of right conduct | - |
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| (noun) a feeling of shame when you do something immoral | - |
| (noun) motivation deriving logically from ethical or moral principles that govern a person's thoughts and actions | Synonyms: moral sense, scruples, sense of right and wrong |
| conscienceless | (adjective) lacking a conscience | Synonyms: unconscionable |
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| conscientious | (adjective) guided by or in accordance with conscience or sense of right and wrong | - |
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| (adjective) characterized by extreme care and great effort | Synonyms: painstaking, scrupulous |
| conscientiously | (adverb) with extreme conscientiousness | Synonyms: religiously, scrupulously |
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| conscientiousness | (noun) the quality of being in accord with the dictates of conscience | - |
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| (noun) the trait of being painstaking and careful | Synonyms: painstakingness |
| conscionable | (adjective) acceptable to your conscience | - |
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| conscious | (adjective) knowing and perceiving; having awareness of surroundings and sensations and thoughts | - |
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| (adjective) (followed by `of') showing realization or recognition of something | - |
| (adjective) intentionally conceived | Synonyms: witting |
| consciously | (adverb) with awareness | - |
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| consciousness | (noun) an alert cognitive state in which you are aware of yourself and your situation | - |
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| (noun) having knowledge of | Synonyms: awareness, cognisance, cognizance, knowingness |
| conscript | (noun) someone who is drafted into military service | Synonyms: draftee, inductee |
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| (verb) enroll into service compulsorily | - |
| conscription | (noun) compulsory military service | Synonyms: draft, muster, selective service |
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| convalesce | (verb) get over an illness or shock | Synonyms: recover, recuperate |
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| convalescence | (noun) gradual healing (through rest) after sickness or injury | Synonyms: recovery, recuperation |
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| convalescent | (adjective) returning to health after illness or debility | Synonyms: recovering |
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| (noun) a person who is recovering from illness | - |
| corkscrew | (noun) a bottle opener that pulls corks | Synonyms: bottle screw |
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| (verb) move in a spiral or zigzag course | Synonyms: spiral |
| corpuscle | (noun) either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets | Synonyms: blood cell, blood corpuscle |
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| (noun) (nontechnical usage) a tiny piece of anything | Synonyms: atom, molecule, mote, particle, speck |
| corpuscular | (adjective) of or relating to corpuscles | - |
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| coruscant | (adjective) having brief brilliant points or flashes of light | Synonyms: aglitter, fulgid, glinting, glistering, glittering, glittery, scintillant, scintillating, sparkly |
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| coruscate | (verb) be lively or brilliant or exhibit virtuosity | Synonyms: scintillate, sparkle |
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| (verb) reflect brightly | Synonyms: scintillate, sparkle |
| coruscation | (noun) a sudden or striking display of brilliance | - |
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| (noun) the occurrence of a small flash or spark | Synonyms: glitter, sparkle |
| coscoroba | (noun) large white South American bird intermediate in some respects between ducks and swans | - |
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| couscous | (noun) a pasta made in northern Africa of crushed and steamed semolina | - |
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| (noun) a spicy dish that originated in northern Africa; consists of pasta steamed with a meat and vegetable stew | - |
| crepuscle | (noun) the time of day immediately following sunset | Synonyms: crepuscule, dusk, evenfall, fall, gloam, gloaming, nightfall, twilight |
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| crepuscular | (adjective) like twilight; dim | - |
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| crepuscule | (noun) the time of day immediately following sunset | Synonyms: crepuscle, dusk, evenfall, fall, gloam, gloaming, nightfall, twilight |
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| crescendo | (adjective) (music) gradually increasing in volume | - |
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| (noun) (music) a gradual increase in loudness | - |
| (verb) grow louder | - |
| crescent | (adjective) resembling the new moon in shape | Synonyms: crescent-shaped, lunate, semilunar |
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| (noun) any shape resembling the curved shape of the moon in its first or last quarters | - |
| crisscross | (adjective) marked with crossing lines | Synonyms: crisscrossed |
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| (noun) a marking that consists of lines that cross each other | Synonyms: cross, mark |
| (adverb) crossing one another in opposite directions | - |
| (verb) mark with a pattern of crossing lines | - |
| (verb) mark with or consist of a pattern of crossed lines | - |
| (verb) cross in a pattern, often random | - |
| crisscrossed | (adjective) marked with crossing lines | Synonyms: crisscross |
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| crosscheck | (noun) an illegal check (chopping at an opponent's arms or stick) | - |
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| (noun) an instance of confirming something by considering information from several sources | - |
| crosscurrent | (noun) actions counter to the main group activity | Synonyms: countercurrent |
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| (noun) a stretch of turbulent water in a river or the sea caused by one current flowing into or across another current | Synonyms: countercurrent, rip, riptide, tide rip |
| crosscut | (noun) a route shorter than the usual one | Synonyms: cutoff, shortcut |
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| (noun) a diagonal path | - |
| (verb) cut using a diagonal line | Synonyms: cut across |
| cryoscope | (noun) a measuring instrument for measuring freezing and melting points | - |
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| culdoscope | (noun) a specialized endoscope for visually examining a woman's pelvic organs | - |
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| culdoscopy | (noun) endoscopic examination of a woman's pelvic organs by the insertion of a culdoscope through the vagina | - |
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| cuscus | (noun) woolly-haired monkey-like arboreal marsupial of New Guinea and northern Australia | - |
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| damascene | (adjective) of or relating to or characteristic of Damascus or its people | - |
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| (adjective) (of metals) decorated or inlaid with a wavy pattern of different (especially precious) metals | - |
| (noun) a design produced by inlaying gold or silver into steel | - |
| (verb) inlay metal with gold and silver | - |
| decalescence | (noun) phenomenon that occurs when a metal is being heated and there is a sudden slowing in the rate of temperature increase; slowing is caused by a change in the internal crystal structure of the metal | - |
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| decalescent | (adjective) absorbing heat without increase in temperature when heated beyond a certain point | - |
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| decrescendo | (adjective) (music) gradually decreasing in volume | Synonyms: diminuendo |
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| (noun) (music) a gradual decrease in loudness | Synonyms: diminuendo |
| (verb) grow quieter | - |
| defervesce | (verb) experience an abatement of a fever | - |
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| defervescence | (noun) abatement of a fever as indicated by a reduction in body temperature | - |
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| defervescent | (adjective) of or relating to the reduction of a fever | - |
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| dehisce | (verb) burst or split open | - |
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| dehiscence | (noun) (biology) release of material by splitting open of an organ or tissue; the natural bursting open at maturity of a fruit or other reproductive body to release seeds or spores or the bursting open of a surgically closed wound | - |
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