/ Dictionary / Index A ADH: Meaning and Definition of Find definitions for: ADH Pronunciation: [key] — Biochem. Biochem. antidiuretic hormone. Cf. vasopressin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: adh (Thesaurus) ad gloriam* adhere Related Content Daily Word Quiz: alacrity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language