/ Dictionary / Index H hexaploid: Meaning and Definition of Find definitions for: hex•a•ploid Pronunciation: (hek'su-ploid"), [key] — Biol. Biol. —adj. having a chromosome number that is six times the haploid number. —n. a hexaploid cell or organism. Cf. polyploid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hexapla hexapod Related Content Daily Word Quiz: serendipity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language