| efferent | (noun) a nerve that conveys impulses toward or to muscles or glands | Synonyms: efferent nerve, motor nerve |
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| effervescence | (noun) the property of giving off bubbles | Synonyms: bubbliness, frothiness |
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| (noun) the process of bubbling as gas escapes | - |
| efficaciousness | (noun) capacity or power to produce a desired effect | Synonyms: efficacy |
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| efficacy | (noun) capacity or power to produce a desired effect | Synonyms: efficaciousness |
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| efficiency | (noun) skillfulness in avoiding wasted time and effort | - |
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| (noun) the ratio of the output to the input of any system | - |
| effigy | (noun) a representation of a person (especially in the form of sculpture) | Synonyms: image, simulacrum |
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| effleurage | (noun) a rhythmic stroking | - |
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| efflorescence | (noun) a powdery deposit on a surface | Synonyms: bloom |
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| (noun) the time and process of budding and unfolding of blossoms | Synonyms: anthesis, blossoming, florescence, flowering, inflorescence |
| (noun) any red eruption of the skin | Synonyms: rash, roseola, skin rash |
| (noun) the period of greatest prosperity or productivity | Synonyms: bloom, blossom, flower, flush, heyday, peak, prime |
| effluence | (noun) the process of flowing out | Synonyms: efflux, outflow |
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| effluent | (noun) water mixed with waste matter | Synonyms: sewer water, wastewater |
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| effluvium | (noun) a foul-smelling outflow or vapor (especially a gaseous waste) | - |
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| efflux | (noun) the process of flowing out | Synonyms: effluence, outflow |
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| effort | (noun) earnest and conscientious activity intended to do or accomplish something | Synonyms: attempt, endeavor, endeavour, try |
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| (noun) use of physical or mental energy; hard work | Synonyms: elbow grease, exertion, sweat, travail |
| (noun) a notable achievement | Synonyms: exploit, feat |
| (noun) a series of actions advancing a principle or tending toward a particular end | Synonyms: campaign, cause, crusade, drive, movement |
| effortfulness | (noun) the quality of requiring deliberate effort | - |
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| effortlessness | (noun) the quality of requiring little effort | - |
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| effrontery | (noun) audacious (even arrogant) behavior that you have no right to | Synonyms: assumption, presumption, presumptuousness |
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| effulgence | (noun) the quality of being bright and sending out rays of light | Synonyms: radiance, radiancy, refulgence, refulgency, shine |
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| effusion | (noun) flow under pressure | - |
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| (noun) an unrestrained expression of emotion | Synonyms: blowup, ebullition, gush, outburst |
| effusiveness | (noun) a friendly open trait of a talkative person | Synonyms: expansiveness, expansivity |
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| eft | (noun) a newt in its terrestrial stage of development | - |
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| egalitarian | (noun) a person who believes in the equality of all people | Synonyms: equalitarian |
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| egalitarianism | (noun) the doctrine of the equality of mankind and the desirability of political and economic and social equality | Synonyms: equalitarianism |
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| egalite | (noun) social and political equality | Synonyms: egality |
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| egality | (noun) social and political equality | Synonyms: egalite |
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| egg | (noun) animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds | - |
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| (noun) one of the two male reproductive glands that produce spermatozoa and secrete androgens | Synonyms: ball, ballock, bollock, nut, orchis, testicle, testis |
| (noun) oval reproductive body of a fowl (especially a hen) used as food | Synonyms: eggs |
| eggar | (noun) moth having nonfunctional mouthparts as adults; larvae feed on tree foliage and spin egg-shaped cocoons | Synonyms: egger |
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| eggbeater | (noun) a mixer for beating eggs or whipping cream | Synonyms: eggwhisk |
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| (noun) an aircraft without wings that obtains its lift from the rotation of overhead blades | Synonyms: chopper, helicopter, whirlybird |
| eggcup | (noun) dishware consisting of a small cup for serving a boiled egg | Synonyms: egg cup |
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| egger | (noun) moth having nonfunctional mouthparts as adults; larvae feed on tree foliage and spin egg-shaped cocoons | Synonyms: eggar |
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| eggfruit | (noun) ovoid orange-yellow mealy sweet fruit of Florida and West Indies | Synonyms: canistel |
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| egghead | (noun) an intellectual; a very studious and academic person | - |
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| eggnog | (noun) a punch made of sweetened milk or cream mixed with eggs and usually alcoholic liquor | - |
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| eggplant | (noun) egg-shaped vegetable having a shiny skin typically dark purple but occasionally white or yellow | Synonyms: aubergine, mad apple |
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| (noun) hairy upright herb native to southeastern Asia but widely cultivated for its large glossy edible fruit commonly used as a vegetable | Synonyms: aubergine, brinjal, eggplant bush, garden egg, mad apple, Solanum melongena |
| eggs | (noun) oval reproductive body of a fowl (especially a hen) used as food | Synonyms: egg |
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| eggshake | (noun) a milkshake with egg in it | - |
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| eggshell | (noun) the exterior covering of a bird's egg | Synonyms: shell |
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| eggwhisk | (noun) a mixer for beating eggs or whipping cream | Synonyms: eggbeater |
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| egis | (noun) armor plate that protects the chest; the front part of a cuirass | Synonyms: aegis, breastplate |
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| eglantine | (noun) Eurasian rose with prickly stems and fragrant leaves and bright pink flowers followed by scarlet hips | Synonyms: briar, brier, Rosa eglanteria, sweetbriar, sweetbrier |
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| ego | (noun) (psychoanalysis) the conscious mind | - |
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| (noun) your consciousness of your own identity | Synonyms: self |
| (noun) an inflated feeling of pride in your superiority to others | Synonyms: egotism, self-importance |
| egocentric | (noun) a self-centered person with little regard for others | Synonyms: egoist |
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| egocentrism | (noun) concern for your own interests and welfare | Synonyms: egoism, self-centeredness, self-concern, self-interest |
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| egoism | (noun) concern for your own interests and welfare | Synonyms: egocentrism, self-centeredness, self-concern, self-interest |
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| (noun) (ethics) the theory that the pursuit of your own welfare is the basis of morality | - |
| egoist | (noun) a self-centered person with little regard for others | Synonyms: egocentric |
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| (noun) a conceited and self-centered person | Synonyms: egotist, swellhead |
| egomania | (noun) an intense and irresistible love for yourself and concern for your own needs | - |
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| egomaniac | (noun) an abnormally egotistical person | - |
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| egotism | (noun) an exaggerated opinion of your own importance | Synonyms: self-importance, swelled head |
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| (noun) an inflated feeling of pride in your superiority to others | Synonyms: ego, self-importance |
| egotist | (noun) a conceited and self-centered person | Synonyms: egoist, swellhead |
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| egress | (noun) the act of coming (or going) out; becoming apparent | Synonyms: egression, emergence |
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| (noun) (astronomy) the reappearance of a celestial body after an eclipse | Synonyms: emersion |
| (noun) the becoming visible | Synonyms: emergence, issue |
| egression | (noun) the act of coming (or going) out; becoming apparent | Synonyms: egress, emergence |
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| egret | (noun) any of various usually white herons having long plumes during breeding season | - |
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| eider | (noun) duck of the Northern Hemisphere much valued for the fine soft down of the females | Synonyms: eider duck |
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| eiderdown | (noun) down of the eider duck | - |
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| (noun) a soft quilt usually filled with the down of the eider | Synonyms: continental quilt, duvet |
| eidos | (noun) (anthropology) the distinctive expression of the cognitive or intellectual character of a culture or a social group | - |
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| eigenvalue | (noun) (mathematics) any number such that a given square matrix minus that number times the identity matrix has a zero determinant | Synonyms: characteristic root of a square matrix, eigenvalue of a matrix, eigenvalue of a square matrix |
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| eight | (noun) one of four playing cards in a deck with eight pips on the face | Synonyms: eight-spot |
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| (noun) the cardinal number that is the sum of seven and one | Synonyms: 8, eighter, eighter from Decatur, octad, octet, octonary, ogdoad, VIII |
| eighteen | (noun) the cardinal number that is the sum of seventeen and one | Synonyms: 18, XVIII |
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| eighteenth | (noun) position 18 in a countable series of things | - |
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| eighter | (noun) the cardinal number that is the sum of seven and one | Synonyms: 8, eight, eighter from Decatur, octad, octet, octonary, ogdoad, VIII |
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| eighth | (noun) one part in eight equal parts | Synonyms: one-eighth |
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| (noun) position eight in a countable series of things | - |
| eighties | (noun) the time of life between 80 and 90 | Synonyms: mid-eighties |
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| (noun) the decade from 1980 to 1989 | Synonyms: 1980s |
| (noun) the decade from 1880 to 1889 | Synonyms: 1880s |
| eightieth | (noun) position 80 in a countable series of things | - |
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| eightpence | (noun) a coin worth eight pennies | - |
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| eightsome | (noun) a Scottish reel for eight dancers | - |
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| (noun) eight people considered as a unit | Synonyms: octet, octette |
| eightvo | (noun) the size of a book whose pages are made by folding a sheet of paper three times to form eight leaves | Synonyms: 8vo, octavo |
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| eighty | (noun) the cardinal number that is the product of ten and eight | Synonyms: 80, fourscore, LXXX |
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| eimeria | (noun) parasitic on the digestive epithelium of vertebrates and higher invertebrates | Synonyms: coccidium |
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| einsteinium | (noun) a radioactive transuranic element produced by bombarding plutonium with neutrons | Synonyms: atomic number 99, E, Es |
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| eisegesis | (noun) personal interpretation of a text (especially of the Bible) using your own ideas | - |
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| eisteddfod | (noun) any of several annual Welsh festivals involving artistic competitions (especially in singing) | - |
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| ejaculate | (noun) the thick white fluid containing spermatozoa that is ejaculated by the male genital tract | Synonyms: come, cum, seed, semen, seminal fluid |
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| ejaculation | (noun) an abrupt emphatic exclamation expressing emotion | Synonyms: interjection |
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| (noun) the discharge of semen in males | - |
| ejaculator | (noun) a speaker who utters a sudden exclamation | - |
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| (noun) a man who ejaculates semen | - |
| ejection | (noun) the act of forcing out someone or something | Synonyms: exclusion, expulsion, riddance |
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| (noun) the act of expelling or projecting or ejecting | Synonyms: expulsion, forcing out, projection |
| ejective | (noun) a type of consonant in some languages, e.g., Hausa, produced by sudden release of pressure from the glottis. | Synonyms: ejective consonant |
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| ejector | (noun) a mechanism in a firearm that ejects the empty shell case after firing | Synonyms: cartridge ejector |
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| (noun) An injector, ejector, steam ejector, steam injector, eductor-jet pump or thermocompressor is a type of pump. | Synonyms: eductor-jet pump, injector, steam ejector, steam injector, thermocompressor |
| (noun) a person who ousts or supplants someone else | Synonyms: ouster |
| el | (noun) a railway that is powered by electricity and that runs on a track that is raised above the street level | Synonyms: elevated, elevated railroad, elevated railway, overhead railway |
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| elaborateness | (noun) marked by elaborately complex detail | Synonyms: elaboration, intricacy, involution |
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| (noun) an ornate appearance; being elaborately (even excessively) decorated | Synonyms: ornateness |
| elaboration | (noun) developing in intricate and painstaking detail | Synonyms: working out |
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| (noun) addition of extra material or illustration or clarifying detail | Synonyms: amplification |
| (noun) marked by elaborately complex detail | Synonyms: elaborateness, intricacy, involution |
| (noun) a discussion that provides additional information | Synonyms: enlargement, expansion |
| (noun) the result of improving something | Synonyms: refinement |
| elan | (noun) enthusiastic and assured vigor and liveliness | - |
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| (noun) distinctive and stylish elegance | Synonyms: dash, flair, panache, style |
| (noun) a feeling of strong eagerness (usually in favor of a person or cause) | Synonyms: ardor, ardour, zeal |
| eland | (noun) either of two large African antelopes of the genus Taurotragus having short spirally twisted horns in both sexes | - |
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| elaphure | (noun) large Chinese deer surviving only in domesticated herds | Synonyms: Elaphurus davidianus, pere david's deer |
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| elapid | (noun) any of numerous venomous fanged snakes of warmer parts of both hemispheres | Synonyms: elapid snake |
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| elasmobranch | (noun) any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks, rays, skates | Synonyms: selachian |
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| elastance | (noun) The capacity of a dielectric for opposing an electric charge | Synonyms: electrical elastance |
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| elastase | (noun) a pancreatic enzyme that catalyzes the hydrolysis of elastin | - |
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| elastic | (noun) a fabric made of yarns containing an elastic material | - |
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| (noun) a narrow band of elastic rubber used to hold things (such as papers) together | Synonyms: elastic band, rubber band |
| elasticity | (noun) the tendency of a body to return to its original shape after it has been stretched or compressed | Synonyms: snap |
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| elastin | (noun) a fibrous scleroprotein found in elastic tissues such as the walls of arteries | - |
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| elastomer | (noun) any of various elastic materials that resemble rubber (resumes its original shape when a deforming force is removed) | - |
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| elastosis | (noun) breakdown of elastic tissue (as the loss of elasticity in the skin of elderly people that results from degeneration of connective tissue) | - |
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| elater | (noun) any of various widely distributed beetles | Synonyms: elaterid, elaterid beetle |
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| elaterid | (noun) any of various widely distributed beetles | Synonyms: elater, elaterid beetle |
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| elation | (noun) a feeling of joy and pride | Synonyms: high spirits, lightness |
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| (noun) an exhilarating psychological state of pride and optimism; an absence of depression | - |
| elbow | (noun) the joint of a mammal or bird that corresponds to the human elbow | - |
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| (noun) the part of a sleeve that covers the elbow joint | - |
| (noun) a sharp bend in a road or river | - |
| (noun) a length of pipe with a sharp bend in it | - |
| (noun) hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped | Synonyms: articulatio cubiti, cubital joint, cubitus, elbow joint, human elbow |
| elbowing | (noun) jostling with the elbows | - |
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| eld | (noun) a late time of life | Synonyms: age, geezerhood, old age, years |
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| (noun) a time of life (usually defined in years) at which some particular qualification or power arises | Synonyms: age |
| elder | (noun) a person who is older than you are | Synonyms: senior |
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| (noun) any of various church officers | - |
| (noun) any of numerous shrubs or small trees of temperate and subtropical Northern Hemisphere having white flowers and berrylike fruit | Synonyms: elderberry bush |
| elderberry | (noun) berrylike fruit of an elder used for e.g. wines and jellies | - |
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| (noun) a common shrub with black fruit or a small tree of Europe and Asia; fruit used for wines and jellies | Synonyms: black elder, bourtree, common elder, European elder, Sambucus nigra |
| elderly | (noun) people who are old collectively | Synonyms: aged |
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