/ Dictionary / Index H hectare: Meaning and Definition of Find definitions for: hec•tare Pronunciation: (hek'târ), [key] — n. a unit of surface, or land, measure equal to 100 ares, or 10,000 square meters: equivalent to 2.471 acres. Abbr.: ha Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hectare (Thesaurus) hect- hectic Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language