/ Dictionary / Index H human leukocyte antigen: Meaning and Definition of Find definitions for: hu'man leu'kocyte an"tigen Pronunciation: [key] — Immunol. Immunol. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. humankind humanly Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language