/ Dictionary / Index L leukocyte: Meaning and Definition of Find definitions for: leu•ko•cyte Pronunciation: (l'ku-sit"), [key] — n. Immunol. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: leukocyte (Thesaurus) leukoblast leukocytosis Related Content Daily Word Quiz: miscreant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language