/ Dictionary / Index H hyd.: Meaning and Definition of Find definitions for: hyd. Pronunciation: [key] hydraulics. hydrostatics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hybris hydantoin Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language