/ Dictionary / Index L leucoplakia: Meaning and Definition of Find definitions for: leu•co•pla•ki•a Pronunciation: (l"ku-plā'kē-u), [key] — n. Pathol. leukoplakia. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. leucopenia leucoplast 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