/ Dictionary / Index A allopolyploid: Meaning and Definition of Find definitions for: al•lo•pol•y•ploid Pronunciation: (al"u-pol'u-ploid"), [key] — Biol. Biol. —adj. having more than two haploid sets of chromosomes that are dissimilar and derived from different species. —n. an allopolyploid cell or organism. Cf. autopolyploid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. alloplasty allopurinol Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language