| chromatogram | (noun) the recording (column or paper strip) on which the constituents of a mixture are adsorbed in chromatography | - |
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| cinnamene | (noun) a colorless oily liquid; the monomer for polystyrene | Synonyms: phenylethylene, styrene, vinylbenzene |
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| cinnamon | (noun) spice from the dried aromatic bark of the Ceylon cinnamon tree; used as rolled strips or ground | - |
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| (noun) tropical Asian tree with aromatic yellowish-brown bark; source of the spice cinnamon | Synonyms: Ceylon cinnamon, Ceylon cinnamon tree, Cinnamomum zeylanicum |
| (noun) aromatic bark used as a spice | Synonyms: cinnamon bark |
| cladogram | (noun) a tree diagram used to illustrate phylogenetic relationships | - |
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| clam | (noun) burrowing marine mollusk living on sand or mud; the shell closes with viselike firmness | - |
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| (noun) flesh of either hard-shell or soft-shell clams | - |
| (noun) a piece of paper money worth one dollar | Synonyms: buck, dollar, dollar bill, one dollar bill |
| clambake | (noun) a cookout at the seashore where clams and fish and other foods are cooked--usually on heated stones covered with seaweed | - |
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| clamber | (noun) an awkward climb | - |
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| clamminess | (noun) unpleasant wetness | Synonyms: dankness |
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| clammyweed | (noun) strong-scented herb common in southern United States covered with intermixed gland and hairs | Synonyms: Polanisia dodecandra, Polanisia graveolens |
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| clamor | (noun) loud and persistent outcry from many people | Synonyms: clamoring, clamour, clamouring, hue and cry |
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| (noun) a loud harsh or strident noise | Synonyms: blare, blaring, cacophony, din |
| clamoring | (noun) loud and persistent outcry from many people | Synonyms: clamor, clamour, clamouring, hue and cry |
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| clamour | (noun) loud and persistent outcry from many people | Synonyms: clamor, clamoring, clamouring, hue and cry |
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| clamouring | (noun) loud and persistent outcry from many people | Synonyms: clamor, clamoring, clamour, hue and cry |
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| clamp | (noun) a device (generally used by carpenters) that holds things firmly together | Synonyms: clinch |
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| clampdown | (noun) sudden restriction on an activity | - |
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| clams | (noun) informal terms for money | Synonyms: boodle, bread, cabbage, dinero, dough, gelt, kale, lettuce, lolly, loot, lucre, moolah, pelf, scratch, shekels, simoleons, sugar, wampum |
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| clamshell | (noun) the shell of a clam | - |
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| (noun) a dredging bucket with hinges like the shell of a clam | Synonyms: grapple |
| clawhammer | (noun) a hammer with a cleft at one end for pulling nails | Synonyms: carpenter's hammer, claw hammer |
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| cleistogamy | (noun) the production of small nonopening self-pollinating flowers | - |
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| clomipramine | (noun) a tricyclic antidepressant drug | - |
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| coaming | (noun) a raised framework around a hatchway on a ship to keep water out | - |
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| cobalamin | (noun) a B vitamin that is used to treat pernicious anemia | Synonyms: antipernicious anemia factor, cyanocobalamin, vitamin B12 |
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| cocoyam | (noun) tropical starchy tuberous root | Synonyms: dasheen, edda, taro, taro root |
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| (noun) edible starchy tuberous root of taro plants | Synonyms: dasheen, eddo, taro |
| cofferdam | (noun) large watertight chamber used for construction under water | Synonyms: caisson, pneumatic caisson |
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| coldcream | (noun) a cream used cosmetically (mostly by women) for softening and cleaning the skin | Synonyms: cold cream, face cream, vanishing cream |
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| contaminant | (noun) a substance that contaminates | Synonyms: contamination |
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| contamination | (noun) the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors | Synonyms: pollution |
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| (noun) the state of being contaminated | Synonyms: taint |
| (noun) a substance that contaminates | Synonyms: contaminant |
| counterexample | (noun) refutation by example | - |
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| crammer | (noun) a textbook designed for cramming | - |
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| (noun) a special school where students are crammed | - |
| (noun) a student who crams | - |
| (noun) a teacher who is paid to cram students for examinations | - |
| cramp | (noun) a strip of metal with ends bent at right angles; used to hold masonry together | Synonyms: cramp iron |
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| (noun) a clamp for holding pieces of wood together while they are glued | - |
| (noun) a painful and involuntary muscular contraction | Synonyms: muscle spasm, spasm |
| crampbark | (noun) deciduous thicket-forming Old World shrub with clusters of white flowers and small bright red berries | Synonyms: cranberry tree, European cranberry bush, European cranberrybush, guelder rose, Viburnum opulus |
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| crampfish | (noun) any sluggish bottom-dwelling ray of the order Torpediniformes having a rounded body and electric organs on each side of the head capable of emitting strong electric discharges | Synonyms: electric ray, numbfish, torpedo |
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| crampon | (noun) an iron spike attached to the shoe to prevent slipping on ice when walking or climbing | Synonyms: climber, climbing iron, crampoon |
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| (noun) a hinged pair of curved iron bars; used to raise heavy objects | Synonyms: crampoon |
| crampoon | (noun) an iron spike attached to the shoe to prevent slipping on ice when walking or climbing | Synonyms: climber, climbing iron, crampon |
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| (noun) a hinged pair of curved iron bars; used to raise heavy objects | Synonyms: crampon |
| cream | (noun) toiletry consisting of any of various substances in the form of a thick liquid that have a soothing and moisturizing effect when applied to the skin | Synonyms: emollient, ointment |
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| (noun) the part of milk containing the butterfat | - |
| (noun) the best people or things in a group | Synonyms: pick |
| creamcups | (noun) California plant with small pale yellow flowers | Synonyms: Platystemon californicus |
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| creamer | (noun) a small pitcher for serving cream | Synonyms: cream pitcher |
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| creamery | (noun) a workplace where dairy products (butter and cheese etc.) are produced or sold | - |
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| creaminess | (noun) the property of having the thickness of heavy cream | Synonyms: soupiness |
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| creampie | (noun) Ejaculate inside a vagina or anus | - |
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| crossbeam | (noun) a horizontal beam that extends across something | Synonyms: crosspiece, trave, traverse |
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| cryptogam | (noun) formerly recognized taxonomic group including all flowerless and seedless plants that reproduce by means of spores: ferns, mosses, algae, fungi | - |
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| cryptogram | (noun) a piece of writing in code or cipher | Synonyms: cryptograph, secret writing |
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| cyanamid | (noun) a weak soluble dibasic acid (the parent acid of cyanamide salts) | Synonyms: cyanamide |
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| cyanamide | (noun) a weak soluble dibasic acid (the parent acid of cyanamide salts) | Synonyms: cyanamid |
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| (noun) a compound used as a fertilizer and as a source of nitrogen compounds | Synonyms: calcium-cyanamide |
| cyanocobalamin | (noun) a B vitamin that is used to treat pernicious anemia | Synonyms: antipernicious anemia factor, cobalamin, vitamin B12 |
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| cyanuramide | (noun) a white crystalline organic base; used mainly in making melamine resins | Synonyms: melamine |
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| cyclamate | (noun) any salt or ester of cyclamic acid. | - |
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| cyclamen | (noun) Mediterranean plant widely cultivated as a houseplant for its showy dark green leaves splotched with silver and nodding white or pink to reddish flowers with reflexed petals | Synonyms: Cyclamen purpurascens |
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| cyclorama | (noun) a picture (or series of pictures) representing a continuous scene | Synonyms: diorama, panorama |
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| dagame | (noun) source of a tough elastic wood | Synonyms: Calycophyllum candidissimum, lemonwood tree |
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| dam | (noun) female parent of an animal especially domestic livestock | - |
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| (noun) a barrier constructed to contain the flow of water or to keep out the sea | Synonyms: dike, dyke |
| (noun) a metric unit of length equal to ten meters | Synonyms: decameter, decametre, dekameter, dekametre, dkm |
| damage | (noun) the act of damaging something or someone | Synonyms: harm, hurt, scathe |
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| (noun) any harm or injury resulting from a violation of a legal right | Synonyms: legal injury, wrong |
| (noun) the occurrence of a change for the worse | Synonyms: harm, impairment |
| (noun) loss of military equipment | Synonyms: equipment casualty |
| (noun) the amount of money needed to purchase something | Synonyms: price, terms |
| damages | (noun) a sum of money paid in compensation for loss or injury | Synonyms: amends, indemnification, indemnity, redress, restitution |
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| damar | (noun) any of various hard resins from trees of the family Dipterocarpaceae and of the genus Agathis; especially the amboyna pine | Synonyms: dammar, dammar resin, gum dammar |
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| damascene | (noun) a design produced by inlaying gold or silver into steel | - |
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| damask | (noun) a fabric of linen or cotton or silk or wool with a reversible pattern woven into it | - |
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| (noun) a table linen made from linen with a damask pattern | - |
| dame | (noun) informal terms for a (young) woman | Synonyms: bird, chick, doll, skirt, wench |
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| (noun) a woman of refinement | Synonyms: gentlewoman, lady, ma'am, madam |
| daminozide | (noun) a chemical sprayed on fruit trees to regulate their growth so the entire crop can be harvested at one time | Synonyms: Alar |
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| dammar | (noun) any of various hard resins from trees of the family Dipterocarpaceae and of the genus Agathis; especially the amboyna pine | Synonyms: damar, dammar resin, gum dammar |
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| damn | (noun) something of little value | Synonyms: darn, hoot, red cent, shit, shucks, tinker's dam, tinker's damn |
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| damnation | (noun) the act of damning | - |
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| (noun) the state of being condemned to eternal punishment in Hell | Synonyms: eternal damnation |
| damned | (noun) people who are condemned to eternal punishment | - |
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| damoiselle | (noun) a young unmarried woman | Synonyms: damosel, damozel, damsel, demoiselle |
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| damosel | (noun) a young unmarried woman | Synonyms: damoiselle, damozel, damsel, demoiselle |
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| damourite | (noun) a variety of muscovite | - |
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| damozel | (noun) a young unmarried woman | Synonyms: damoiselle, damosel, damsel, demoiselle |
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| damp | (noun) a slight wetness | Synonyms: dampness, moistness |
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| dampener | (noun) a device that dampens or moistens something | Synonyms: moistener |
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| dampening | (noun) the act of making something slightly wet | Synonyms: moistening |
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| damper | (noun) a depressing restraint | - |
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| (noun) a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations | Synonyms: muffler |
| (noun) a movable iron plate that regulates the draft in a stove or chimney or furnace | - |
| dampness | (noun) a slight wetness | Synonyms: damp, moistness |
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| damsel | (noun) a young unmarried woman | Synonyms: damoiselle, damosel, damozel, demoiselle |
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| damselfish | (noun) small brilliantly colored tropical marine fishes of coral reefs | Synonyms: demoiselle |
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| damselfly | (noun) slender non-stinging insect similar to but smaller than the dragonfly but having wings folded when at rest | - |
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| damson | (noun) dark purple plum of the damson tree | Synonyms: damson plum |
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| dashcam | (noun) A camera filming from the dashboard of a car | - |
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| daydream | (noun) absentminded dreaming while awake | Synonyms: air castle, castle in Spain, castle in the air, daydreaming, oneirism, reverie, revery |
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| daydreamer | (noun) someone who indulges in idle or absentminded daydreaming | Synonyms: woolgatherer |
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| daydreaming | (noun) absentminded dreaming while awake | Synonyms: air castle, castle in Spain, castle in the air, daydream, oneirism, reverie, revery |
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| deamination | (noun) removal of the amino radical from an amino acid or other amino compound | Synonyms: deaminization |
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| deaminization | (noun) removal of the amino radical from an amino acid or other amino compound | Synonyms: deamination |
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| decagram | (noun) 10 grams | Synonyms: dag, dekagram, dkg |
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| decameter | (noun) a metric unit of length equal to ten meters | Synonyms: dam, decametre, dekameter, dekametre, dkm |
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| decametre | (noun) a metric unit of length equal to ten meters | Synonyms: dam, decameter, dekameter, dekametre, dkm |
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| decampment | (noun) breaking camp | - |
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| (noun) the act of running away secretly (as to avoid arrest) | Synonyms: abscondment |
| decigram | (noun) 1/10 gram | Synonyms: dg |
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| declamation | (noun) vehement oratory | - |
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| (noun) recitation of a speech from memory with studied gestures and intonation as an exercise in elocution or rhetoric | - |
| decontamination | (noun) the removal of contaminants | - |
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| defamation | (noun) an abusive attack on a person's character or good name | Synonyms: aspersion, calumny, denigration, slander |
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| (noun) a false accusation of an offense or a malicious misrepresentation of someone's words or actions | Synonyms: calumniation, calumny, hatchet job, obloquy, traducement |
| defamer | (noun) one who attacks the reputation of another by slander or libel | Synonyms: backbiter, libeler, maligner, slanderer, traducer, vilifier |
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| dekagram | (noun) 10 grams | Synonyms: dag, decagram, dkg |
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| dekameter | (noun) a metric unit of length equal to ten meters | Synonyms: dam, decameter, decametre, dekametre, dkm |
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| dekametre | (noun) a metric unit of length equal to ten meters | Synonyms: dam, decameter, decametre, dekameter, dkm |
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| desipramine | (noun) a tricyclic antidepressant drug that activates the psychomotor system | - |
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| desquamation | (noun) loss of bits of outer skin by peeling or shedding or coming off in scales | Synonyms: peeling, shedding |
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| dexamethasone | (noun) a corticosteroid drug (trade names Decadron or Dexamethasone Intensol or Dexone or Hexadrol or Oradexon) used to treat allergies or inflammation | Synonyms: Decadron, Dexamethasone Intensol, Dexone, Hexadrol, Oradexon |
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| diagram | (noun) a drawing intended to explain how something works; a drawing showing the relation between the parts | - |
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| diagramming | (noun) providing a chart or outline of a system | Synonyms: schematisation, schematization |
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| diam | (noun) the length of a straight line passing through the center of a circle and connecting two points on the circumference | Synonyms: diameter |
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