/ Dictionary / Index E eutectic: Meaning and Definition of Find definitions for: eu•tec•tic Pronunciation: (y-tek'tik), [key] — Physical Chem. Physical Chem. —adj. of greatest fusibility: said of an alloy or mixture whose melting point is lower than that of any other alloy or mixture of the same ingredients. noting or pertaining to such a mixture or its properties: a eutectic melting point. —n. a eutectic substance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: eutectic (Thesaurus) eutaxy eutectoid Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language