| cerebromeningitis | (noun) inflammation of the brain and spinal cord and their meninges | Synonyms: encephalomeningitis, meningoencephalitis |
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| chairwoman | (noun) the female officer who presides at the meetings of an organization | - |
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| chamomile | (noun) Eurasian plant with apple-scented foliage and white-rayed flowers and feathery leaves used medicinally; in some classification systems placed in genus Anthemis | Synonyms: Anthemis nobilis, camomile, Chamaemelum nobilis |
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| charwoman | (noun) a human female employed to do housework | Synonyms: char, cleaning lady, cleaning woman |
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| chatroom | (noun) a site on the internet where a number of users can communicate in real time (typically one dedicated to a particular topic) | Synonyms: chat room |
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| checkerbloom | (noun) perennial purple-flowered wild mallow of western North America that is also cultivated | Synonyms: Sidalcea malviflora, wild hollyhock |
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| checkroom | (noun) a room where baggage or parcels are checked | Synonyms: left-luggage office |
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| chiromance | (verb) divine by reading someone's palms | - |
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| chiromancer | (noun) fortuneteller who predicts your future by the lines on your palms | Synonyms: palmist, palmister |
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| chiromancy | (noun) telling fortunes by lines on the palm of the hand | Synonyms: chirology, palm reading, palmistry |
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| chiromantic | (adjective) of or relating to palmistry | - |
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| chlorpromazine | (noun) a drug (trade name Thorazine) derived from phenothiazine that has antipsychotic effects and is used as a sedative and tranquilizer | Synonyms: Thorazine |
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| cholecystectomy | (noun) surgical removal of the gall bladder (usually for relief of gallstone pain) | - |
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| cholelithotomy | (noun) removal of gallstone through an incision in the gallbladder | - |
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| chomp | (noun) the act of gripping or chewing off with the teeth and jaws | Synonyms: bite |
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| (verb) chew noisily or vigorously | Synonyms: champ |
| chomping | (noun) the act of chewing noisily | - |
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| chondriosome | (noun) an organelle containing enzymes responsible for producing energy | Synonyms: mitochondrion |
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| chondroma | (noun) a common benign tumor of cartilage cells | - |
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| chondrosarcoma | (noun) a malignant neoplasm of cartilage cells | - |
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| chordomesoderm | (noun) the area of mesoderm that forms the notochord | Synonyms: chordamesoderm |
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| choriomeningitis | (noun) a cerebral meningitis with cellular infiltration of the meninges | - |
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| chrestomathy | (noun) a selection of passages from different authors that is compiled as an aid in learning a language | - |
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| chrisom | (noun) a consecrated ointment consisting of a mixture of oil and balsam | Synonyms: chrism, holy oil, sacramental oil |
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| chroma | (noun) chromatic purity: freedom from dilution with white and hence vivid in hue | Synonyms: intensity, saturation, vividness |
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| chromaesthesia | (noun) a form of synesthesia in which nonvisual stimulation results in the experience of color sensations | Synonyms: chromesthesia |
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| chromate | (noun) any salt or ester of chromic acid | - |
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| chromatic | (adjective) being or having or characterized by hue | - |
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| (adjective) based on a scale consisting of 12 semitones | - |
| (adjective) able to refract light without spectral color separation | - |
| chromatically | (adverb) with respect to color | - |
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| chromaticity | (noun) the quality of a color as determined by its dominant wavelength | Synonyms: hue |
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| chromatid | (noun) one of two identical strands into which a chromosome splits during mitosis | - |
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| chromatin | (noun) the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins; during mitotic division it condenses into chromosomes | Synonyms: chromatin granule |
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| chromatinic | (adjective) (of substance of a cell nucleus) readily colored by stains | - |
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| chromatism | (noun) abnormal pigmentation | - |
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| (noun) hallucinatory perception of colored lights | - |
| chromatogram | (noun) the recording (column or paper strip) on which the constituents of a mixture are adsorbed in chromatography | - |
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| chromatograph | (noun) equipment that enables a sophisticated separation, e.g. gas chromatographic or liquid chromatographic separation. | - |
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| chromatographic | (adjective) of or relating to chromatography | Synonyms: chromatographical |
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| chromatographical | (adjective) of or relating to chromatography | Synonyms: chromatographic |
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| chromatographically | (adverb) by means of a chromatographic process | - |
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| chromatography | (noun) a process used for separating mixtures by virtue of differences in absorbency | - |
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| chrome | (noun) another word for chromium when it is used in dyes or pigments | - |
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| (verb) treat with a chromium compound | - |
| (verb) plate with chromium | Synonyms: chromium-plate |
| chromesthesia | (noun) a form of synesthesia in which nonvisual stimulation results in the experience of color sensations | Synonyms: chromaesthesia |
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| chromite | (noun) a brownish-black mineral; the major source of chromium | - |
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| chromium | (noun) a hard brittle multivalent metallic element; resistant to corrosion and tarnishing | Synonyms: atomic number 24, Cr |
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| chromoblastomycosis | (noun) a fungal infection characterized by itchy warty nodules on the skin | - |
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| chromogen | (noun) a compound that can be converted to a pigment | - |
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| chromolithograph | (noun) a print made by chromolithography. | - |
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| chromolithography | (noun) single- or multi-color lithography | - |
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| chromophore | (noun) the chemical group that gives color to a molecule | - |
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| chromoplast | (noun) plastid containing pigments other than chlorophyll usually yellow or orange carotenoids | - |
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| chromosomal | (adjective) of or relating to a chromosome | - |
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| chromosome | (noun) a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order | - |
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| chromosphere | (noun) a gaseous layer of the sun's atmosphere (extending from the photosphere to the corona) that is visible during a total eclipse of the sun | - |
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| chronometer | (noun) an accurate clock (especially used in navigation) | - |
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| chrysomelid | (noun) brightly colored beetle that feeds on plant leaves; larvae infest roots and stems | Synonyms: leaf beetle |
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| chylomicron | (noun) a microscopic particle of triglycerides produced in the intestines during digestion; in the bloodstream they release their fatty acids into the blood | - |
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| clanswoman | (noun) a female member of a clan | - |
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| classroom | (noun) a room in a school where lessons take place | Synonyms: schoolroom |
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| cleome | (noun) any of various often strong-smelling plants of the genus Cleome having showy spider-shaped flowers | Synonyms: spiderflower |
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| clinometer | (noun) an instrument used by surveyors in order to measure an angle of inclination or elevation | Synonyms: inclinometer |
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| clitoridectomy | (noun) excision of the clitoris | Synonyms: female circumcision |
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| cloakroom | (noun) a room where coats and other articles can be left temporarily | Synonyms: coatroom |
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| (noun) a private lounge off of a legislative chamber | - |
| clomiphene | (noun) a fertility drug (trade name Clomid) that is used to stimulate ovulation and that has been associated with multiple births | Synonyms: Clomid, clomiphene citrate |
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| clomipramine | (noun) a tricyclic antidepressant drug | - |
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| clomp | (verb) walk clumsily | Synonyms: clump |
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| clubroom | (noun) a room used for the activities of a club | - |
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| coatroom | (noun) a room where coats and other articles can be left temporarily | Synonyms: cloakroom |
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| coccidioidomycosis | (noun) an infection of the lungs and skin characterized by excessive sputum and nodules | Synonyms: coccidiomycosis, desert rheumatism, valley fever |
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| coccidiomycosis | (noun) an infection of the lungs and skin characterized by excessive sputum and nodules | Synonyms: coccidioidomycosis, desert rheumatism, valley fever |
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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 |
| coelom | (noun) a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity | Synonyms: celom, celoma |
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| cognomen | (noun) the name used to identify the members of a family (as distinguished from each member's given name) | Synonyms: family name, last name, surname |
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| (noun) a familiar name for a person (often a shortened version of a person's given name) | Synonyms: byname, moniker, nickname, sobriquet, soubriquet |
| colostomy | (noun) a surgical operation that creates an opening from the colon to the surface of the body to function as an anus | - |
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| coma | (noun) a state of deep and often prolonged unconsciousness; usually the result of disease or injury | Synonyms: comatoseness |
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| (noun) (astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed | - |
| (noun) (botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds) | - |
| comal | (adjective) of certain seeds (such as cotton) having a tuft or tufts of hair | Synonyms: comate, comose |
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| comate | (adjective) bearing a coma; crowned with an assemblage of branches or leaves or bracts | Synonyms: comose |
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| (adjective) of certain seeds (such as cotton) having a tuft or tufts of hair | Synonyms: comal, comose |
| comatose | (adjective) relating to or associated with a coma | - |
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| (adjective) in a state of deep and usually prolonged unconsciousness; unable to respond to external stimuli | - |
| comatoseness | (noun) a state of deep and often prolonged unconsciousness; usually the result of disease or injury | Synonyms: coma |
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| comatulid | (noun) free-swimming stalkless crinoid with ten feathery arms; found on muddy sea bottoms | Synonyms: feather star |
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| comb | (noun) the act of drawing a comb through hair | Synonyms: combing |
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| (noun) ciliated comb-like swimming plate of a ctenophore | - |
| (noun) the fleshy red crest on the head of the domestic fowl and other gallinaceous birds | Synonyms: cockscomb, coxcomb |
| (noun) a flat device with narrow pointed teeth on one edge; disentangles or arranges hair | - |
| (noun) any of several tools for straightening fibers | - |
| (verb) smoothen and neaten with or as with a comb | Synonyms: comb out, disentangle |
| (verb) search thoroughly | Synonyms: ransack |
| (verb) straighten with a comb | - |
| combat | (noun) an engagement fought between two military forces | Synonyms: armed combat |
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| (noun) the act of fighting; any contest or struggle | Synonyms: fight, fighting, scrap |
| (verb) battle or contend against in or as if in a battle | Synonyms: battle |
| combatant | (adjective) engaging in or ready for combat | - |
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| (noun) someone who fights (or is fighting) | Synonyms: battler, belligerent, fighter, scrapper |
| combative | (adjective) having or showing a ready disposition to fight | Synonyms: battleful, bellicose |
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| (adjective) inclined or showing an inclination to dispute or disagree, even to engage in law suits | Synonyms: contentious, disputatious, disputative, litigious |
| (adjective) striving to overcome in argument | Synonyms: agonistic, agonistical |
| combatively | (adverb) in a bellicose contentious manner | Synonyms: scrappily |
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| combativeness | (noun) a militant aggressiveness | Synonyms: militance, militancy |
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| combed | (adjective) (of hair) made tidy with a comb | - |
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| comber | (noun) a machine that separates and straightens the fibers of cotton or wool | - |
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| (noun) a long curling sea wave | - |
| (noun) a person who separates and straightens the fibers of cotton or wool | - |
| combinable | (adjective) able to or tending to combine | Synonyms: combinational, combinatory |
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| combination | (noun) the act of combining things to form a new whole | Synonyms: combining, compounding |
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| (noun) the act of arranging elements into specified groups without regard to order | - |
| (noun) a collection of things that have been combined; an assemblage of separate parts or qualities | - |
| (noun) a group of people (often temporary) having a common purpose | - |
| (noun) a sequence of numbers or letters that opens a combination lock | - |
| (noun) an alliance of people or corporations or countries for a special purpose (formerly to achieve some antisocial end but now for general political or economic purposes) | - |
| (noun) a coordinated sequence of chess moves | - |
| combinational | (adjective) able to or tending to combine | Synonyms: combinable, combinatory |
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| combinative | (adjective) marked by or relating to or resulting from combination | Synonyms: combinatory |
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| (adjective) relating to or involving combinations | Synonyms: combinatorial, combinatory |
| combinatorial | (adjective) relating to the combination and arrangement of elements in sets | - |
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| (adjective) relating to or involving combinations | Synonyms: combinative, combinatory |
| combinatory | (adjective) marked by or relating to or resulting from combination | Synonyms: combinative |
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| (adjective) relating to or involving combinations | Synonyms: combinative, combinatorial |
| (adjective) able to or tending to combine | Synonyms: combinable, combinational |
| combine | (noun) harvester that heads and threshes and cleans grain while moving across the field | - |
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| (noun) an occurrence that results in things being united | Synonyms: combining |
| (noun) a consortium of independent organizations formed to limit competition by controlling the production and distribution of a product or service | Synonyms: cartel, corporate trust, trust |
| (verb) mix together different elements | Synonyms: blend, coalesce, commingle, conflate, flux, fuse, immix, meld, merge, mix |
| (verb) put or add together | Synonyms: compound |
| (verb) combine so as to form a whole; mix | Synonyms: compound |
| (verb) gather in a mass, sum, or whole | Synonyms: aggregate |
| (verb) add together from different sources | - |
| (verb) join for a common purpose or in a common action | - |
| (verb) have or possess in combination | Synonyms: unite |
| combined | (adjective) made or joined or united into one | - |
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| combing | (noun) the act of drawing a comb through hair | Synonyms: comb |
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| combining | (noun) the act of combining things to form a new whole | Synonyms: combination, compounding |
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| (noun) an occurrence that results in things being united | Synonyms: combine |
| combo | (noun) a small band of jazz musicians | Synonyms: jazz band, jazz group |
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| combretum | (noun) any of numerous shrubs or small trees of the genus Combretum having spikes of small flowers | - |
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| comburant | (adjective) supporting combustion | Synonyms: comburent, combustive |
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| comburent | (adjective) supporting combustion | Synonyms: comburant, combustive |
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