| cantonment | (noun) temporary living quarters specially built by the army for soldiers | Synonyms: bivouac, camp, encampment |
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| cantor | (noun) the official of a synagogue who conducts the liturgical part of the service and sings or chants the prayers intended to be performed as solos | Synonyms: hazan |
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| (noun) the musical director of a choir | Synonyms: choirmaster, precentor |
| capacitor | (noun) an electrical device characterized by its capacity to store an electric charge | Synonyms: capacitance, condenser, electrical condenser |
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| capitol | (noun) a building occupied by a state legislature | - |
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| capstone | (noun) a stone that forms the top of wall or building | Synonyms: copestone, coping stone, stretcher |
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| (noun) a final touch; a crowning achievement; a culmination | Synonyms: copestone, finishing touch |
| captopril | (noun) a drug (trade name Capoten) that blocks the formation of angiotensin in the kidneys resulting in vasodilation; used in the treatment of hypertension and congestive heart failure | Synonyms: Capoten |
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| captor | (noun) a person who captures and holds people or animals | Synonyms: capturer |
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| caracolito | (noun) large Costa Rican tree having light-colored wood suitable for cabinetry; similar to the African lepidobotrys in wood structure as well as in fruit and flowers and leaves and seeds; often classified in other families | Synonyms: Ruptiliocarpon caracolito |
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| carbonator | (noun) a device that carries out carbonation. | Synonyms: soda carbonator, soda maker |
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| carburetor | (noun) mixes air with gasoline vapor prior to explosion | Synonyms: carburettor |
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| carburettor | (noun) mixes air with gasoline vapor prior to explosion | Synonyms: carburetor |
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| carrottop | (noun) someone who has red hair | Synonyms: red-header, redhead, redheader |
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| cartographer | (noun) a person who makes maps | Synonyms: map maker |
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| cartography | (noun) the making of maps and charts | Synonyms: mapmaking |
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| carton | (noun) a box made of cardboard; opens by flaps on top | - |
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| (noun) the quantity contained in a carton | Synonyms: cartonful |
| cartonful | (noun) the quantity contained in a carton | Synonyms: carton |
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| cartoon | (noun) a humorous or satirical drawing published in a newspaper or magazine | Synonyms: sketch |
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| (noun) a film made by photographing a series of cartoon drawings to give the illusion of movement when projected in rapid sequence | Synonyms: animated cartoon, toon |
| cartoonist | (noun) a person who draws cartoons | - |
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| cartouch | (noun) a cartridge (usually with paper casing) | Synonyms: cartouche |
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| cartouche | (noun) a cartridge (usually with paper casing) | Synonyms: cartouch |
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| castor | (noun) a hat made with the fur of a beaver (or similar material) | Synonyms: beaver |
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| (noun) a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable | Synonyms: caster |
| (noun) a shaker with a perforated top for sprinkling powdered sugar | Synonyms: caster |
| castrato | (noun) a male singer who was castrated before puberty and retains a soprano or alto voice | - |
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| catatonia | (noun) a form of schizophrenia characterized by a tendency to remain in a fixed stuporous state for long periods; the catatonia may give way to short periods of extreme excitement | Synonyms: catatonic schizophrenia, catatonic type schizophrenia |
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| (noun) extreme tonus; muscular rigidity; a common symptom in catatonic schizophrenia | - |
| catoptrics | (noun) branch of optics dealing with formation of images by mirrors | - |
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| catostomid | (noun) a cypriniform fish of the family Catostomidae | - |
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| cavetto | (noun) a concave molding shaped like a quarter circle in cross section | - |
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| celebrator | (noun) a person who is celebrating | Synonyms: celebrant, celebrater |
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| cephalhematoma | (noun) a collection of blood under the scalp of a newborn; caused by pressure during birth | Synonyms: cephalohematoma |
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| cephalohematoma | (noun) a collection of blood under the scalp of a newborn; caused by pressure during birth | Synonyms: cephalhematoma |
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| ceratodus | (noun) extinct lungfish | - |
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| ceratopsian | (noun) any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia | Synonyms: horned dinosaur |
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| ceratosaur | (noun) primitive medium-sized theropod; swift-running bipedal carnivorous dinosaur having grasping hands with sharp claws and a short horn between the nostrils; Jurassic in North America | Synonyms: ceratosaurus |
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| ceratosaurus | (noun) primitive medium-sized theropod; swift-running bipedal carnivorous dinosaur having grasping hands with sharp claws and a short horn between the nostrils; Jurassic in North America | Synonyms: ceratosaur |
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| ceratozamia | (noun) a small cycad of the genus Ceratozamia having a short scaly woody trunk and fernlike foliage and woody cones; Mexico | - |
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| cestode | (noun) ribbonlike flatworms that are parasitic in the intestines of humans and other vertebrates | Synonyms: tapeworm |
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| chaetodon | (noun) any fish of the genus Chaetodon | - |
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| chaetognath | (noun) any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth | Synonyms: arrowworm |
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| chalkstone | (noun) a deposit of urates around a joint or in the external ear; diagnostic of advanced or chronic gout | Synonyms: tophus |
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| chemoautotroph | (noun) An organism that depends on chemicals for its energy and principally on carbon dioxide for its carbon. | Synonyms: chemotrophic autotroph |
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| chemoreceptor | (noun) a sensory receptor that responds to chemical stimuli | - |
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| cherrystone | (noun) a half-grown quahog | Synonyms: cherrystone clam |
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| (noun) small quahog larger than a littleneck; eaten raw or cooked as in e.g. clams casino | Synonyms: cherrystone clam |
| chiropractor | (noun) a therapist who practices chiropractic | - |
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| chiton | (noun) primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates | Synonyms: coat-of-mail shell, polyplacophore, sea cradle |
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| (noun) a woolen tunic worn by men and women in ancient Greece | - |
| chloroacetophenone | (noun) a tear gas that is weaker than CS gas but lasts longer | Synonyms: CN gas |
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| cholecystectomy | (noun) surgical removal of the gall bladder (usually for relief of gallstone pain) | - |
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| cholecystokinin | (noun) a gastrointestinal hormone that stimulates the secretion of pancreatic enzymes and the contraction and emptying of the gall bladder; its release is stimulated by the presence of fatty acids and amino acids in the small intestine | - |
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| cholelithotomy | (noun) removal of gallstone through an incision in the gallbladder | - |
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| chorioallantois | (noun) the very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois | Synonyms: chorioallantoic membrane |
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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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| 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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| chromatography | (noun) a process used for separating mixtures by virtue of differences in absorbency | - |
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| chromoblastomycosis | (noun) a fungal infection characterized by itchy warty nodules on the skin | - |
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| cinematographer | (noun) a photographer who operates a movie camera | Synonyms: camera operator, cameraman |
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| cinematography | (noun) the act of making a film | Synonyms: filming, motion-picture photography |
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| circuitousness | (noun) The state of being roundabout, indirect or not to the point. | - |
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| citole | (noun) a 16th century musical instrument resembling a guitar with a pear-shaped soundbox and wire strings | Synonyms: cither, cithern, cittern, gittern |
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| claystone | (noun) fine-grained rock consisting of compacted clay particles | - |
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| clearstory | (noun) part of an interior wall rising above the adjacent roof with windows admitting light | Synonyms: clerestory |
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| cleistocarp | (noun) closed spore-bearing structure of some fungi (especially Aspergillaceae and Erysiphaceae) from which spores are released only by decay or disintegration | Synonyms: cleistothecium |
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| cleistogamy | (noun) the production of small nonopening self-pollinating flowers | - |
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| cleistothecium | (noun) closed spore-bearing structure of some fungi (especially Aspergillaceae and Erysiphaceae) from which spores are released only by decay or disintegration | Synonyms: cleistocarp |
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| clerestory | (noun) part of an interior wall rising above the adjacent roof with windows admitting light | Synonyms: clearstory |
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| climatologist | (noun) someone who is expert in climatology | - |
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| climatology | (noun) meteorology of climates and their phenomena | - |
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| clingstone | (noun) fruit (especially peach) whose flesh adheres strongly to the pit | Synonyms: cling |
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| clintonia | (noun) any temperate liliaceous plant of the genus Clintonia having broad basal leaves and white or yellowish or purplish flowers followed by blue or black berries | Synonyms: Clinton's lily |
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| clitoridectomy | (noun) excision of the clitoris | Synonyms: female circumcision |
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| clitoris | (noun) a female sexual organ homologous to the penis | Synonyms: button, clit |
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| coadjutor | (noun) an assistant to a bishop | - |
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| coagulator | (noun) an agent that produces coagulation | Synonyms: coagulant |
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| cobblestone | (noun) rectangular paving stone with curved top; once used to make roads | Synonyms: cobble, sett |
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| cockatoo | (noun) white or light-colored crested parrot of the Australian region; often kept as cage birds | - |
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| coconspirator | (noun) a member of a conspiracy | Synonyms: conspirator, machinator, plotter |
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| cofactor | (noun) a substance (as a coenzyme) that must join with another to produce a given result | - |
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| collaborator | (noun) an associate in an activity or endeavor or sphere of common interest | Synonyms: cooperator, pardner, partner |
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| (noun) someone who collaborates with an enemy occupying force | Synonyms: collaborationist, quisling |
| (noun) someone who assists in a plot | Synonyms: confederate, henchman, partner in crime |
| collator | (noun) a machine that selects, merges and matches decks of punch cards. | - |
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| collector | (noun) the electrode in a transistor through which a primary flow of carriers leaves the region between the electrodes | - |
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| (noun) a crater that has collected cosmic material hitting the earth | - |
| (noun) a person who is employed to collect payments (as for rent or taxes) | Synonyms: accumulator, gatherer |
| (noun) a person who collects things | Synonyms: aggregator |
| collimator | (noun) optical device consisting of a tube containing a convex achromatic lens at one end and a slit at the other with the slit at the focus of the lens; light rays leave the slit as a parallel beam | - |
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| (noun) a small telescope attached to a large telescope to use in setting the line of the larger one | - |
| 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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| colpocystocele | (noun) hernia in which the urinary bladder protrudes through the wall of the vagina; sometimes occurs after childbirth | Synonyms: cystocele |
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| comatoseness | (noun) a state of deep and often prolonged unconsciousness; usually the result of disease or injury | Synonyms: coma |
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| commentator | (noun) a writer who reports and analyzes events of the day | Synonyms: reviewer |
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| (noun) an expert who observes and comments on something | Synonyms: observer |
| communicator | (noun) a person who communicates with others | - |
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| commutator | (noun) switch for reversing the direction of an electric current | - |
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| competitor | (noun) the contestant you hope to defeat | Synonyms: challenger, competition, contender, rival |
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| compositor | (noun) one who sets written material into type | Synonyms: setter, typesetter, typographer |
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| concerto | (noun) a composition for orchestra and a soloist | - |
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| conciliator | (noun) someone who tries to bring peace | Synonyms: make-peace, pacifier, peacemaker, reconciler |
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| conductor | (noun) a device designed to transmit electricity, heat, etc. | - |
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| (noun) the person who leads a musical group | Synonyms: director, music director |
| (noun) the person who collects fares on a public conveyance | - |
| (noun) a substance that readily conducts e.g. electricity and heat | - |
| congenator | (noun) an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus) | Synonyms: congener, congeneric, relative |
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| connector | (noun) an instrumentality that connects | Synonyms: connecter, connection, connective, connexion |
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| conservatoire | (noun) a schoolhouse with special facilities for fine arts | Synonyms: conservatory |
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| conservator | (noun) the custodian of a collection (as a museum or library) | Synonyms: curator |
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| (noun) someone appointed by a court to assume responsibility for the interests of a minor or incompetent person | - |
| conservatory | (noun) a greenhouse in which plants are arranged in a pleasing manner | Synonyms: hothouse, indoor garden |
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| (noun) a schoolhouse with special facilities for fine arts | Synonyms: conservatoire |
| (noun) the faculty and students of a school specializing in one of the fine arts | - |
| consistory | (noun) a church tribunal or governing body | - |
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| conspirator | (noun) a member of a conspiracy | Synonyms: coconspirator, machinator, plotter |
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| constrictor | (noun) any of various large nonvenomous snakes that kill their prey by crushing it in its coils | - |
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| constructor | (noun) someone who contracts for and supervises construction (as of a building) | Synonyms: builder |
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| conto | (noun) 1 conto equals 1,000 escudos in Portugal | - |
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