/ Dictionary / Index H hydrochloride: Meaning and Definition of Find definitions for: hy•dro•chlo•ride Pronunciation: (hī"dru-klôr'īd, -id, -klōr'-), [key] — n. a salt, esp. of an alkaloid, formed by the direct union of hydrochloric acid with an organic base that makes the organic constituent more soluble. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hydrochloride (Thesaurus) hydrochloric acid hydrochlorothiazide Related Content Daily Word Quiz: acme Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language