/ Dictionary / Index H hydrosere: Meaning and Definition of Find definitions for: hy•dro•sere Pronunciation: (hī'dru-sēr"), [key] — n. Ecol. a sere originating in water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hydroseed hydro-ski Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language