| electrodynamometer | (noun) measuring instrument that uses the interaction of the magnetic fields of two coils to measure current or voltage or power | - |
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| electromagnet | (noun) a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet | - |
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| electromagnetic | (adjective) pertaining to or exhibiting magnetism produced by electric charge in motion | - |
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| electromagnetics | (noun) the branch of physics concerned with electromagnetic phenomena | Synonyms: electromagnetism |
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| electromagnetism | (noun) the branch of physics concerned with electromagnetic phenomena | Synonyms: electromagnetics |
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| (noun) magnetism produced by an electric current | - |
| electrometer | (noun) meter to measure electrostatic voltage differences; draws no current from the source | - |
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| electrophoretic | (adjective) of or relating to electrophoresis | Synonyms: cataphoretic |
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| electroretinogram | (noun) a graphical recording of the electrical activity of the retina that results when light is flashed into the eye | - |
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| emetic | (noun) a medicine that induces nausea and vomiting | Synonyms: nauseant, vomit, vomitive |
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| emmet | (noun) social insect living in organized colonies; characteristically the males and fertile queen have wings during breeding season; wingless sterile females are the workers | Synonyms: ant, pismire |
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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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| emmetropic | (adjective) of or relating to the normal condition of the eye in which visual images are in clear focus on the retina | - |
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| empathetic | (adjective) showing empathy or ready comprehension of others' states | Synonyms: empathic |
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| empathetically | (adverb) in a sympathetic manner | Synonyms: sympathetically |
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| endogenetic | (adjective) of rocks formed or occurring beneath the surface of the earth | Synonyms: endogenic |
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| endometrial | (adjective) of or relating to the endometrium | - |
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| endometriosis | (noun) the presence of endometrium elsewhere than in the lining of the uterus; causes premenstrual pain and dysmenorrhea | Synonyms: adenomyosis |
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| endometritis | (noun) inflammation of the lining of the uterus (of the endometrium) | Synonyms: metritis |
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| endometrium | (noun) (pregnancy) the mucous membrane that lines the uterus; thickens under hormonal control and (if pregnancy does not occur) is shed in menstruation; if pregnancy occurs it is shed along with the placenta at parturition | - |
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| endoskeleton | (noun) the internal skeleton; bony and cartilaginous structure (especially of vertebrates) | - |
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| energetic | (adjective) possessing or exerting or displaying energy | - |
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| (adjective) working hard to promote an enterprise | Synonyms: gumptious, industrious, up-and-coming |
| energetically | (adverb) in an energetic manner | - |
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| energetism | (noun) the philosophical theory that energy is the substrate of all phenomena and that all observable changes can be interpreted as transformations of one kind of energy into another. | Synonyms: energetic monism |
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| entirety | (noun) the state of being total and complete | Synonyms: entireness, integrality, totality |
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| entremets | (noun) a dish that is served with, but is subordinate to, a main course | Synonyms: side dish, side order |
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| epaulet | (noun) adornment consisting of an ornamental cloth pad worn on the shoulder | Synonyms: epaulette |
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| epaulette | (noun) adornment consisting of an ornamental cloth pad worn on the shoulder | Synonyms: epaulet |
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| epenthetic | (adjective) of or pertaining to epenthesis | Synonyms: parasitic |
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| epithet | (noun) descriptive word or phrase | - |
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| (noun) a defamatory or abusive word or phrase | Synonyms: name |
| eptatretus | (noun) a fossil hagfish of the genus Eptatretus | - |
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| erethism | (noun) an abnormally high degree of irritability or sensitivity to stimulation of an organ or body part | - |
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| ergometer | (noun) measuring instrument designed to measure power | Synonyms: dynamometer |
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| eriometer | (noun) An instrument for measuring the diameters of minute particles or fibers, from the size of the colored rings produced by the diffraction of the light in which the objects are viewed. | - |
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| erythropoietic | (adjective) of or relating to the formation of red blood cells | - |
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| erythropoietin | (noun) a glycoprotein secreted by the kidneys that stimulates the production of red blood cells | - |
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| esparcet | (noun) Eurasian perennial herb having pale pink flowers and curved pods; naturalized in Britain and North America grasslands on calcareous soils; important forage crop and source of honey in Britain | Synonyms: holy clover, Onobrychis viciaefolia, Onobrychis viciifolia, sainfoin, sanfoin |
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| estaminet | (noun) a small (and usually shabby) cafe selling wine and beer and coffee | - |
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| esthete | (noun) one who professes great sensitivity to the beauty of art and nature | Synonyms: aesthete |
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| esthetic | (adjective) concerning or characterized by an appreciation of beauty or good taste | Synonyms: aesthetic, aesthetical, esthetical |
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| (adjective) relating to or dealing with the subject of aesthetics | Synonyms: aesthetic |
| (adjective) aesthetically pleasing | Synonyms: aesthetic, artistic |
| (noun) (philosophy) a philosophical theory as to what is beautiful | Synonyms: aesthetic |
| esthetical | (adjective) concerning or characterized by an appreciation of beauty or good taste | Synonyms: aesthetic, aesthetical, esthetic |
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| esthetically | (adverb) in a tasteful way | Synonyms: aesthetically |
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| esthetician | (noun) a philosopher who specializes in the nature of beauty | Synonyms: aesthetician |
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| (noun) a worker skilled in giving beauty treatments (manicures and facials etc.) | Synonyms: aesthetician |
| esthetics | (noun) (art) the branch of philosophy dealing with beauty and taste (emphasizing the evaluative criteria that are applied to art) | Synonyms: aesthetics |
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| eta | (noun) the 7th letter of the Greek alphabet | - |
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| etagere | (noun) a piece of furniture with open shelves for displaying small ornaments | - |
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| etamin | (noun) a soft cotton or worsted fabric with an open mesh; used for curtains or clothing etc. | Synonyms: etamine |
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| etamine | (noun) a soft cotton or worsted fabric with an open mesh; used for curtains or clothing etc. | Synonyms: etamin |
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| etanercept | (noun) a genetically engineered anti-TNF compound (trade name Enbrel) consisting of receptors that bind TNF; it is injected twice a week in the treatment of rheumatoid arthritis | Synonyms: Enbrel |
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| etcetera | (noun) additional unspecified odds and ends; more of the same; entity, other pronoun; pronoun, entity; quantifier: other | - |
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| (adverb) continuing in the same way | Synonyms: and so forth, and so on, etc. |
| etch | (verb) selectively dissolve the surface of (a semiconductor or printed circuit) with a solvent, laser, or stream of electrons | - |
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| (verb) carve or cut a design or letters into | Synonyms: engrave |
| (verb) make an etching of | - |
| (verb) carve or cut into a block used for printing or print from such a block | Synonyms: engrave |
| (verb) cause to stand out or be clearly defined or visible | - |
| etched | (adjective) cut or impressed into a surface | Synonyms: engraved, graven, incised, inscribed |
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| etcher | (noun) someone who etches | - |
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| etching | (noun) making engraved or etched plates and printing designs from them | Synonyms: engraving |
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| (noun) an etched plate made with the use of acid | - |
| (noun) an impression made from an etched plate | - |
| eternal | (adjective) tiresomely long; seemingly without end | Synonyms: endless, interminable |
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| (adjective) continuing forever or indefinitely | Synonyms: aeonian, ageless, eonian, everlasting, perpetual, unceasing, unending |
| eternalise | (verb) make famous forever | Synonyms: eternalize, eternise, eternize, immortalise, immortalize |
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| eternalize | (verb) make famous forever | Synonyms: eternalise, eternise, eternize, immortalise, immortalize |
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| eternally | (adverb) for a limitless time | Synonyms: everlastingly, evermore, forever |
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| eternise | (verb) make famous forever | Synonyms: eternalise, eternalize, eternize, immortalise, immortalize |
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| eternity | (noun) a state of eternal existence believed in some religions to characterize the afterlife | Synonyms: timeless existence, timelessness |
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| (noun) time without end | Synonyms: infinity |
| (noun) a seemingly endless time interval (waiting) | - |
| eternize | (verb) make famous forever | Synonyms: eternalise, eternalize, eternise, immortalise, immortalize |
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| (verb) cause to continue indefinitely | - |
| ethanal | (noun) a colorless volatile water-soluble liquid aldehyde used chiefly in the manufacture of acetic acid and perfumes and drugs | Synonyms: acetaldehyde |
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| ethanamide | (noun) a colorless solid amide of acetic acid used as a solvent and in the synthesis of organic compounds | Synonyms: acetamide |
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| ethane | (noun) a colorless odorless alkane gas used as fuel | Synonyms: C2H6 |
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| ethanediol | (noun) a sweet but poisonous syrupy liquid used as an antifreeze and solvent | Synonyms: ethylene glycol, glycol |
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| ethanoate | (noun) a salt or ester of acetic acid | Synonyms: acetate |
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| ethanol | (noun) the intoxicating agent in fermented and distilled liquors; used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel; proposed as a renewable clean-burning additive to gasoline | Synonyms: ethyl alcohol, fermentation alcohol, grain alcohol |
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| ethchlorvynol | (noun) a mild sedative-hypnotic drug (trade name Placidyl) | Synonyms: Placidyl |
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| ethene | (noun) a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic | Synonyms: ethylene |
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| ether | (noun) a colorless volatile highly flammable liquid formerly used as an inhalation anesthetic | Synonyms: diethyl ether, divinyl ether, ethoxyethane, ethyl ether, vinyl ether |
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| (noun) a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves | Synonyms: aether |
| (noun) any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom | - |
| (noun) the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies | Synonyms: quintessence |
| ethereal | (adjective) of or containing or dissolved in ether | - |
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| (adjective) characterized by unusual lightness and delicacy | Synonyms: gossamer |
| (adjective) of heaven or the spirit | Synonyms: celestial, supernal |
| (adjective) characterized by lightness and insubstantiality; as impalpable or intangible as air | Synonyms: aerial, aeriform, aery, airy |
| etherealize | (verb) make ethereal | Synonyms: etherialise |
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| etherialise | (verb) make ethereal | Synonyms: etherealize |
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| etherify | (verb) change into an ether | - |
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| etherise | (verb) anesthetize with ether | Synonyms: etherize |
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| etherize | (verb) anesthetize with ether | Synonyms: etherise |
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| ethernet | (noun) a type of network technology for local area networks; coaxial cable carries radio frequency signals between computers at a rate of 10 megabits per second | - |
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| ethic | (noun) the principles of right and wrong that are accepted by an individual or a social group | Synonyms: moral principle, value-system, value orientation |
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| (noun) a system of principles governing morality and acceptable conduct | Synonyms: ethical code |
| ethical | (adjective) conforming to accepted standards of social or professional behavior | - |
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| (adjective) of or relating to the philosophical study of ethics | - |
| (adjective) adhering to ethical and moral principles | Synonyms: honorable, honourable |
| ethicality | (noun) The state, quality or manner of conforming to accepted standards of conduct. | - |
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| ethically | (adverb) in an ethical manner; from an ethical point of view; according to ethics | - |
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| ethician | (noun) a philosopher who specializes in ethics | Synonyms: ethicist |
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| ethicism | (noun) a doctrine that ethics and ethical ideas are valid and important | - |
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| ethicist | (noun) a philosopher who specializes in ethics | Synonyms: ethician |
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| ethics | (noun) the philosophical study of moral values and rules | Synonyms: moral philosophy |
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| (noun) motivation based on ideas of right and wrong | Synonyms: ethical motive, morality, morals |
| ethmoid | (noun) one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity | Synonyms: ethmoid bone |
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| ethnarch | (noun) the ruler of a province (as in the Roman Empire and Byzantine Empire) or certain religious rulers with secular authority | - |
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| ethnic | (adjective) not acknowledging the God of Christianity and Judaism and Islam | Synonyms: heathen, heathenish, pagan |
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| (adjective) denoting or deriving from or distinctive of the ways of living built up by a group of people | Synonyms: cultural, ethnical |
| (noun) a person who is a member of an ethnic group | - |
| ethnical | (adjective) denoting or deriving from or distinctive of the ways of living built up by a group of people | Synonyms: cultural, ethnic |
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| ethnically | (adverb) with respect to ethnicity | - |
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| ethnicity | (noun) an ethnic quality or affiliation resulting from racial or cultural ties | - |
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| ethnocentric | (adjective) centered on a specific ethnic group, usually one's own | - |
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| ethnocentrism | (noun) belief in the superiority of one's own ethnic group | - |
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| ethnographer | (noun) an anthropologist who does ethnography | - |
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| ethnographic | (adjective) of or relating to ethnography | Synonyms: ethnographical |
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| ethnographical | (adjective) of or relating to ethnography | Synonyms: ethnographic |
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| ethnography | (noun) the branch of anthropology that provides scientific description of individual human societies | Synonyms: descriptive anthropology |
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| ethnologic | (adjective) of or relating to ethnology | Synonyms: ethnological |
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| ethnological | (adjective) of or relating to ethnology | Synonyms: ethnologic |
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| ethnologist | (noun) an anthropologist who studies ethnology | - |
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| ethnology | (noun) the branch of anthropology that deals with the division of humankind into races and with their origins and distribution and distinctive characteristics | - |
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