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Meaning of leukoplakia

leu•ko•pla•ki•a

Pronunciation: (l"ku-plā'kē-u), [key]
— n. Pathol.
  1. a disorder of a mucous membrane characterized by one or more white patches, occurring most commonly on the cheek, tongue, vulva, or penis: often medically insignificant but sometimes becoming malignant.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.