: an abnormal condition in which thickened white patches of epithelium occur on the mucous membranes (as of the mouth or vulva)
also : a lesion or lesioned area of leukoplakia

Examples of leukoplakia in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Sometimes, even after removal, the leukoplakia can recur and will need to be removed again. — Lauren Krouse, Health.com, 21 Oct. 2021

Word History

Etymology

New Latin, from leuk- + Greek plak-, plax flat surface — more at fluke entry 2

First Known Use

circa 1888, in the meaning defined above

Time Traveler
The first known use of leukoplakia was circa 1888

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Cite this Entry

“Leukoplakia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leukoplakia. Accessed 26 Sep. 2026.

Medical Definition

leukoplakia

noun
leu·​ko·​pla·​kia
: a condition commonly considered precancerous in which thickened white patches of epithelium occur on the mucous membranes especially of the mouth, vulva, and renal pelvis
also : a lesion or lesioned area of leukoplakia
leukoplakic adjective

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