/ Dictionary / Index L leucopenia: Meaning and Definition of Find definitions for: leu•co•pe•ni•a Pronunciation: (l"ku-pē'nē-u), [key] — n. Med. leukopenia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: leucopenia (Thesaurus) leucon leucoplakia Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language