/ Dictionary / Index H heterochromosome: Meaning and Definition of Find definitions for: het•er•o•chro•mo•some Pronunciation: (het"ur-u-krō'mu-sōm"), [key] — n. Genetics. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. heterochrome heterochromous Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language