| countertop | (noun) the top side of a counter | - |
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| crop | (noun) a pouch in many birds and some lower animals that resembles a stomach for storage and preliminary maceration of food | Synonyms: craw |
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| (noun) the stock or handle of a whip | - |
| (noun) the output of something in a season | - |
| (noun) a collection of people or things appearing together | - |
| (noun) the yield from plants in a single growing season | Synonyms: harvest |
| (noun) a cultivated plant that is grown commercially on a large scale | - |
| cropper | (noun) small farmers and tenants | Synonyms: sharecrop farmer, sharecropper |
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| crossopterygian | (noun) any fish of the order Crossopterygii; most known only in fossil form | Synonyms: lobe-finned fish, lobefin |
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| cryopathy | (noun) destruction of tissue by freezing and characterized by tingling, blistering and possibly gangrene | Synonyms: frostbite |
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| cryophobia | (noun) a morbid fear of freezing | - |
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| cryoscope | (noun) a measuring instrument for measuring freezing and melting points | - |
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| cryptophyte | (noun) common in fresh and salt water appearing along the shore as algal blooms | Synonyms: cryptomonad |
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| ctenophore | (noun) biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arranged like teeth in a comb | Synonyms: comb jelly |
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| cuckoopint | (noun) common European arum with lanceolate spathe and short purple spadix; emerges in early spring; source of a starch called arum | Synonyms: Arum maculatum, jack-in-the-pulpit, lords-and-ladies |
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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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| cyclopaedia | (noun) a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty | Synonyms: cyclopedia, encyclopaedia, encyclopedia |
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| cyclopedia | (noun) a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty | Synonyms: cyclopaedia, encyclopaedia, encyclopedia |
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| cyclopia | (noun) a developmental abnormality in which there is only one eye | - |
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| cyclopropane | (noun) a colorless flammable gas sometimes used as an inhalation anesthetic | - |
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| cyclops | (noun) minute free-swimming freshwater copepod having a large median eye and pear-shaped body and long antennae used in swimming; important in some food chains and as intermediate hosts of parasitic worms that affect man e.g. Guinea worms | Synonyms: water flea |
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| cynophobia | (noun) a morbid fear of dogs | - |
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| cystoparalysis | (noun) paralysis of the urinary bladder | Synonyms: cystoplegia |
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| cystoplegia | (noun) paralysis of the urinary bladder | Synonyms: cystoparalysis |
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| cytopenia | (noun) a deficiency of some cellular element of the blood | - |
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| cytophotometer | (noun) a photometer that can be used to locate and identify chemical compounds in a cell by measuring the intensity of the light that passes through stained sections of the cytoplasm | - |
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| cytophotometry | (noun) the study of chemical compounds inside a cell by means of a cytophotometer | - |
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| cytoplasm | (noun) the protoplasm of a cell excluding the nucleus; is full of proteins that control cell metabolism | Synonyms: cytol |
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| cytoplast | (noun) the intact cytoplasmic content of a cell | - |
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| deipnosophist | (noun) someone skilled at informal chitchat | - |
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| depopulation | (noun) the condition of having reduced numbers of inhabitants (or no inhabitants at all) | - |
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| dermatophytosis | (noun) fungal infection of the skin (especially of moist parts covered by clothing) | Synonyms: dermatomycosis |
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| desktop | (noun) (computer science) the area of the screen in graphical user interfaces against which icons and windows appear | Synonyms: background, screen background |
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| (noun) the top of a desk | - |
| deuteranopia | (noun) dichromacy characterized by a lowered sensitivity to green light resulting in an inability to distinguish green and purplish-red | Synonyms: Daltonism, green-blindness |
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| developer | (noun) photographic equipment consisting of a chemical solution for developing film | - |
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| (noun) someone who develops real estate (especially someone who prepares a site for residential or commercial use) | - |
| developing | (noun) processing a photosensitive material in order to make an image visible | Synonyms: development |
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| development | (noun) act of improving by expanding or enlarging or refining | - |
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| (noun) the act of making some area of land or water more profitable or productive or useful | Synonyms: exploitation |
| (noun) (music) the section of a composition or movement (especially in sonata form) where the major musical themes are developed and elaborated | - |
| (noun) a recent event that has some relevance for the present situation | - |
| (noun) a district that has been developed to serve some purpose | - |
| (noun) processing a photosensitive material in order to make an image visible | Synonyms: developing |
| (noun) (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level | Synonyms: growing, growth, maturation, ontogenesis, ontogeny |
| (noun) a process in which something passes by degrees to a different stage (especially a more advanced or mature stage) | Synonyms: evolution |
| (noun) a state in which things are improving; the result of developing (as in the early part of a game of chess) | - |
| dewdrop | (noun) a drop of dew | - |
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| diaphanoscope | (noun) An instrument for illuminating the interior of a cavity to determine the translucency of its walls. | - |
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| diastrophism | (noun) the process of deformation that produces continents and ocean basins in the earth's crust | - |
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| dichromatopsia | (noun) a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision) | Synonyms: dichromacy, dichromasy, dichromatism, dichromia |
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| diopter | (noun) a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists | Synonyms: dioptre |
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| dioptre | (noun) a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists | Synonyms: diopter |
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| diplopia | (noun) visual impairment in which an object is seen as two objects | Synonyms: double vision |
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| disproportion | (noun) lack of proportion; imbalance among the parts of something | Synonyms: dissymmetry, imbalance |
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| dollop | (noun) a small measure (usually of food) | - |
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| doorstop | (noun) a stop that keeps open doors from moving | Synonyms: doorstopper |
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| doorstopper | (noun) a stop that keeps open doors from moving | Synonyms: doorstop |
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| dopa | (noun) amino acid that is formed in the liver and converted into dopamine in the brain | Synonyms: dihydroxyphenylalanine |
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| dopamine | (noun) a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension | Synonyms: Dopastat, Intropin |
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| dope | (noun) street names for marijuana | Synonyms: gage, grass, green goddess, locoweed, Mary Jane, pot, sens, sess, skunk, smoke, weed |
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| (noun) slang terms for inside information | Synonyms: low-down, poop, the skinny |
| (noun) carbonated drink flavored with extract from kola nuts | Synonyms: cola |
| (noun) an ignorant or foolish person | Synonyms: boob, booby, dumbbell, dummy, pinhead |
| doppelganger | (noun) a ghostly double of a living person that haunts its living counterpart | - |
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| doppelzentner | (noun) a unit of weight equal to 100 kilograms in the metric system | Synonyms: centner, hundredweight, metric hundredweight |
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| downslope | (noun) a downward slope or bend | Synonyms: declension, declination, decline, declivity, descent, fall |
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| droop | (noun) a shape that sags | Synonyms: sag |
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| drop | (noun) the act of dropping something | - |
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| (noun) a central depository where things can be left or picked up | - |
| (noun) a curtain that can be lowered and raised onto a stage from the flies; often used as background scenery | Synonyms: drop cloth, drop curtain |
| (noun) a sudden sharp decrease in some quantity | Synonyms: dip, fall, free fall |
| (noun) a free and rapid descent by the force of gravity | Synonyms: fall |
| (noun) a predetermined hiding place for the deposit and distribution of illicit goods (such as drugs or stolen property) | - |
| (noun) a steep high face of rock | Synonyms: cliff, drop-off |
| (noun) a small indefinite quantity (especially of a liquid) | Synonyms: drib, driblet |
| (noun) a shape that is spherical and small | Synonyms: bead, pearl |
| dropkick | (noun) (football) kicking (as for a field goal) in which the football is dropped and kicked as it touches the ground | - |
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| dropkicker | (noun) a football kicker who drops the ball and kicks it just as it reaches the ground | - |
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| droplet | (noun) a tiny drop | - |
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| dropline | (noun) a headline with the top line flush left and succeeding lines indented to the right | Synonyms: drop line, stagger head, staggered head, stephead, stepped line |
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| dropout | (noun) someone who quits school before graduation | - |
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| (noun) someone who withdraws from a social group or environment | - |
| dropper | (noun) pipet consisting of a small tube with a vacuum bulb at one end for drawing liquid in and releasing it a drop at a time | Synonyms: eye dropper |
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| droppings | (noun) fecal matter of animals | Synonyms: dung, muck |
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| dropseed | (noun) a grass of the genus Sporobolus | Synonyms: drop-seed |
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| dropsy | (noun) swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities | Synonyms: edema, hydrops, oedema |
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| drosophila | (noun) small fruit fly used by Thomas Hunt Morgan in studying basic mechanisms of inheritance | Synonyms: Drosophila melanogaster |
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| dryopithecine | (noun) considered a possible ancestor to both anthropoid apes and humans | - |
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| dustmop | (noun) a dry swab for dusting floors | Synonyms: dry mop, dust mop |
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| dystopia | (noun) a work of fiction describing an imaginary place where life is extremely bad because of deprivation or oppression or terror | - |
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| (noun) state in which the conditions of life are extremely bad as from deprivation or oppression or terror | - |
| dystrophy | (noun) any degenerative disorder resulting from inadequate or faulty nutrition | - |
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| (noun) any of several hereditary diseases of the muscular system characterized by weakness and wasting of skeletal muscles | Synonyms: muscular dystrophy |
| eardrop | (noun) an earring with a pendant ornament | Synonyms: drop earring, pendant earring |
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| eavesdropper | (noun) a secret listener to private conversations | - |
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| ectoparasite | (noun) any external parasitic organism (as fleas) | Synonyms: ectozoan, ectozoon, epizoan, epizoon |
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| ectopia | (noun) abnormal position of a part or organ (especially at the time of birth) | - |
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| ectoplasm | (noun) the outer granule-free layer of cytoplasm | - |
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| (noun) (spiritualism) a substance supposed to emanate from the body of the medium during a trance | - |
| ectoproct | (noun) sessile mossy aquatic animal having the anus of the polyp outside the crown of tentacles | - |
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| electrophoresis | (noun) the motion of charged particles in a colloid under the influence of an electric field; particles with a positive charge go to the cathode and negative to the anode | Synonyms: cataphoresis, dielectrolysis, ionophoresis |
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| electrophorus | (noun) a simple electrostatic generator that generates repeated charges of static electricity | - |
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| electroplate | (noun) any artifact that has been plated with a thin coat of metal by electrolysis | - |
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| electroplater | (noun) a plater who uses electrolysis | - |
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| electroscope | (noun) measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign | - |
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| elopement | (noun) the act of running away with a lover (usually to get married) | - |
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| emmetropia | (noun) (ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina | - |
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| encephalopathy | (noun) any disorder or disease of the brain | Synonyms: brain disease, brain disorder |
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| encopresis | (noun) involuntary defecation not attributable to physical defects or illness | - |
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| encyclopaedia | (noun) a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty | Synonyms: cyclopaedia, cyclopedia, encyclopedia |
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| encyclopaedism | (noun) profound scholarly knowledge | Synonyms: encyclopedism, eruditeness, erudition, learnedness, learning, scholarship |
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| encyclopaedist | (noun) a person who compiles information for encyclopedias | Synonyms: encyclopedist |
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| encyclopedia | (noun) a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty | Synonyms: cyclopaedia, cyclopedia, encyclopaedia |
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| encyclopedism | (noun) profound scholarly knowledge | Synonyms: encyclopaedism, eruditeness, erudition, learnedness, learning, scholarship |
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| encyclopedist | (noun) a person who compiles information for encyclopedias | Synonyms: encyclopaedist |
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| endoparasite | (noun) any of various parasites that live in the internal organs of animals (especially intestinal worms) | Synonyms: endozoan, entoparasite, entozoan, entozoon |
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| endoplasm | (noun) the inner portion of the cytoplasm of a cell | - |
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| endopsammon | (noun) The microscopic fauna of sand and mud. | - |
|---|
| endoscope | (noun) a long slender medical instrument for examining the interior of a bodily organ or performing minor surgery | - |
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| endoscopy | (noun) visual examination of the interior of a hollow body organ by use of an endoscope | - |
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| enophile | (noun) someone who appreciates wine | Synonyms: oenophile |
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| enteropathy | (noun) a disease of the intestinal tract | - |
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| enteroptosis | (noun) an abnormally downward position of the intestines in the abdominal cavity | - |
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| enteroscope | (noun) an instrument for inspecting the inside of the intestine. | - |
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| entomophobia | (noun) a morbid fear of insects | - |
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| entoparasite | (noun) any of various parasites that live in the internal organs of animals (especially intestinal worms) | Synonyms: endoparasite, endozoan, entozoan, entozoon |
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| entoproct | (noun) any of various moss-like aquatic animals usually forming branching colonies; each polyp having a both mouth and anus within a closed ring of tentacles | - |
|---|
| entropy | (noun) (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work | Synonyms: randomness, S |
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| (noun) (communication theory) a numerical measure of the uncertainty of an outcome | Synonyms: information, selective information |