/ Dictionary / Index H hydromulch: Meaning and Definition of Find definitions for: hy•dro•mulch Pronunciation: (hī'dru-mulch"), [key] — v.t. to spread mulch on (a field, garden, etc.) in a stream of water propelled through a hose. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hydromorphic hydronaut Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language