/ Dictionary / Index D decoction: Meaning and Definition of Find definitions for: de•coc•tion Pronunciation: (di-kok'shun), [key] — n. the act of decocting. an extract obtained by decocting. water in which a crude vegetable drug has been boiled and which therefore contains the constituents or principles of the substance soluble in boiling water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: decoction (Thesaurus) decoct decode Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language