/ Dictionary / Index U unit character: Meaning and Definition of Find definitions for: u'nit char'acter Pronunciation: [key] — Genetics. Genetics. a characteristic, usually controlled by a single gene, that is transmitted as a unit in heredity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. unit cell unit circle Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language