lesion

noun
le·​sion | \ˈlē-zhən \

Definition of lesion 

1 : injury, harm

2 : an abnormal change in structure of an organ or part due to injury or disease especially : one that is circumscribed (see circumscribe sense 1) and well defined

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Other Words from lesion

lesioned \ˈlē-​zhənd \ adjective

Examples of lesion in a Sentence

Recent Examples on the Web

According to the autopsies, roughly half of that group had been misdiagnosed as having Alzheimer’s — their brains didn’t show evidence of the brain lesions typical of the disease. Linda Marsa, Discover Magazine, "A New Treatment for Alzheimer's? It Starts With Lifestyle," 16 Nov. 2018 These people attribute it to zinc’s antibacterial and anti-inflammatory effects, which can potentially calm the angriest acne lesions. Macaela Mackenzie, Allure, "Does Zinc for Acne Really Work? Dermatologists Weigh In," 18 Sep. 2018 But the report states that the skin lesions became deep necrotic ulcers, which means the cells in the living tissue along his hand and arm were dying. Bartie Scott, Teen Vogue, "Raw Seafood Reportedly Led to Amputation for One Man," 30 Aug. 2018 The lesions may also develop secondary bacterial infections. Alexandria Hein, Fox News, "'Flesh-eating' STD allegedly reported in England," 22 Aug. 2018 The jury examined gory photos of the lesions that covered up to 80% of his body, and in testimony Mr. Johnson described how even wearing clothing caused excruciating pain. The Editorial Board, WSJ, "Round Up the Usual Lawyers," 15 Aug. 2018 After six weeks on the drug, the lesions were gone. Marie Mccullough, Philly.com, "Can the abortion pill treat advanced lung cancer? This infertility expert wants to find out," 3 July 2018 The hormone therapy is likely to stop the growth of the bone metastases, perhaps even shrink the lesions, Watson said. Ann Doss Helms, charlotteobserver, "'I got 13 good years.' With prostate cancer in his bones, here's his message for men. | Charlotte Observer," 24 May 2018 Now, Johnson is terminally ill, and lesions cover much of his body. Emily Stewart, Vox, "Monsanto was just ordered to pay $289 million to a man who says its weed killer caused his cancer," 11 Aug. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lesion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of lesion

15th century, in the meaning defined at sense 1

History and Etymology for lesion

Middle English, from Anglo-French, from Latin laesion-, laesio, from laedere to injure

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Statistics for lesion

Last Updated

15 Dec 2018

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Time Traveler for lesion

The first known use of lesion was in the 15th century

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More Definitions for lesion

lesion

noun

English Language Learners Definition of lesion

medical : an injured or diseased spot or area on or in the body

lesion

noun
le·​sion | \ˈlē-zhən \

Kids Definition of lesion

: an abnormal spot or area of the body caused by sickness or injury

lesion

noun
le·​sion | \ˈlē-zhən \

Medical Definition of lesion 

(Entry 1 of 2)

: an abnormal change in structure of an organ or part due to injury or disease especially : one that is circumscribed and well defined

Other Words from lesion

lesioned \-​zhənd \ adjective

Medical Definition of lesion (Entry 2 of 2)

: to produce lesions in (as an animal's brain)

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lesion

noun
le·​sion | \ˈlē-zhən \

Legal Definition of lesion 

in the civil law of Louisiana : loss from failure to receive a threshold amount or value (as one-half market value) for immovable property conveyed or transferred by a commutative contract (as a sale or exchange)

called also lesion beyond moiety

— compare unjust enrichment

History and Etymology for lesion

Anglo-French, damage, injury, from Latin laesio, from laedere to injure

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More from Merriam-Webster on lesion

Rhyming Dictionary: Words that rhyme with lesion

Spanish Central: Translation of lesion

Nglish: Translation of lesion for Spanish Speakers

Britannica English: Translation of lesion for Arabic Speakers

Britannica.com: Encyclopedia article about lesion

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