/ Dictionary / Index A alcahest: Meaning and Definition of Find definitions for: al•ca•hest Pronunciation: (al'ku-hest"), [key] — n. alkahest. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: alcahest (Thesaurus) Alcaeus Alcaic Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language