lesion
Americannoun
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an injury; hurt; wound.
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Pathology. any localized, abnormal structural change in the body.
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Plant Pathology. any localized, defined area of diseased tissue, as a spot, canker, blister, or scab.
verb (used with object)
noun
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any structural change in a bodily part resulting from injury or disease
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an injury or wound
Etymology
Origin of lesion
First recorded in 1425–75; late Middle English, from Middle French, from Latin laesiōn-, stem of laesiō “injury,” from Latin laes(us) “harmed” (past participle of laedere “to harm”) + -iō -ion
Explanation
A lesion is an injury to the living tissue on your body, like your skin or an organ. Usually a lesion involves a break or wound to the skin, so protect it with a bandage so that it heals quickly. Lesion, pronounced "LEE-zhun," comes from the Latin word laesionem meaning "injury." Lesions on the skin are usually not very nice to look at, the kind of wounds that might make you grimace — things like open sores, cuts, deep scrapes or puss-filled gashes. Lesions also are a concern of doctors because if lesions develop without explanation, it can be a sign that your immune system is dangerously weak.
Vocabulary lists containing lesion
The Immortal Life of Henrietta Lacks
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Psychology
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Lesion studies, though, seem to be having a revival.
From Scientific American • Oct. 30, 2018
Lesion network mapping empowers lesion studies to rigorously answer this newer question.
From Scientific American • Oct. 30, 2018
Lesion cases fed most of the era’s knowledge of the brain.
From Scientific American • Oct. 30, 2018
A Bankart Lesion refers to damage to the Glenoid labrum and attached joint capsule.
From Seattle Times • Oct. 9, 2017
On Monday, the Mariners’ outfielder underwent successful surgery to repair a Bankart Lesion.
From Seattle Times • Oct. 9, 2017
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
