/ Dictionary / Index H Hygroton: Meaning and Definition of Find definitions for: Hy•gro•ton Pronunciation: (hī'gru-ton), [key] — Pharm., Trademark. Pharm.,Trademark. a brand of chlorthalidone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hygroton (Thesaurus) hygrothermograph hying Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language