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ethylene a colorless, flammable organic gas used in coloring citrus fruit, making organic synthetics, and anesthesia.
ethylene glycol a colorless sticky liquid, used esp. as an antifreeze.
etiolate to weaken, esp. through deprivation of normal development. [3 definitions]
etiology the medical study of the causes of diseases. [3 definitions]
etiquette accepted or prescribed forms of behavior, courtesies, and ceremonies in society or a profession.
Eton collar a broad white collar worn over the lapels of an Eton jacket, or a collar like this.
Eton jacket a waist-length jacket with wide lapels, worn open in front.
Etruria an ancient country and civilization that flourished in the sixth century B.C. in west central Italy.
Etruscan of or pertaining to Etruria or its people, culture, language, or the like. [3 definitions]
-ette small. [3 definitions]
étude a musical composition featuring a particular technique, or intended mainly for practice in that technique.
etymology an account of the origin and development of a word and its meanings. [2 definitions]
Eu symbol of the chemical element europium.
EU abbreviation of "European Union," an economic and political union of twenty-seven democratic countries formed from the European Economic Community in 1993. The union currently consists of the member states Austria, Belgium, Bulgaria, the Czech Republic, Cyprus, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, and the United Kingdom.
eu- well; good; easily.
Euanthes in Greek mythology, son of Ariadne and Dionysus.
eucalyptol an essential oil derived from eucalyptus leaves and used in perfumes, medicines, and the like; cineole.
eucalyptus any of various tall evergreen trees native to Australia, having leaves that yield a pungent oil used in medicines.
eucalyptus oil an essential oil obtained from eucalyptus leaves, used as an expectorant and antiseptic.
Eucharist the Christian sacrament of Holy Communion. [2 definitions]
euchre a card game for two to four people, using the highest thirty-two cards in the deck. [3 definitions]