Lesion Definition
lēzhən
lesions
noun
lesions
An injury; hurt; damage.
Webster's New World
An injury or other change in an organ or tissue of the body tending to result in impairment or loss of function.
Webster's New World
verb
To cause a lesion to form on or in.
American Heritage
To cause a lesion to form on or in.
American Heritage Medicine
To wound or injure, especially in an experiment or other controlled procedure.
Wiktionary
Origin of Lesion
Middle English lesioun from Old French lesion from Latin laesiō laesiōn- from laesus past participle of laedere to injure
From American Heritage Dictionary of the English Language, 5th Edition
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From Middle English, from Middle French, from Latin laesiō (“injury"), itself from laesus, perfect passive participle of laedō (“I injure, hurt").
From Wiktionary
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