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
Examples of lesion in a Sentence
Recent Examples on the Web
Often persistent, the lesions can result from genetic mutations, chronic irritation, or exposure to risk factors like tobacco, alcohol, or HPV infection.
—
Dan Perry, Newsweek, 31 Jan. 2025
There was the lesion, the scans, the meds and the debilitating reactions to too much stimuli, which flared up when his three rambunctious children hit overdrive.
—Bryce Miller, San Diego Union-Tribune, 21 Jan. 2025
Extra flaky, tough skin might also signal psoriasis, an autoimmune disorder that triggers keratin overproduction (resulting in scaly and more inflamed lesions) or eczema (especially if your symptoms are paired with relentless itchiness).
—Jenna Ryu, SELF, 9 Jan. 2025
Other lesions that bleed, such as ulcers and hemorrhoids, can also contribute to iron depletion.
—Caroline C. Boyle, USA TODAY, 19 Dec. 2024
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Dan Perry, Newsweek, 31 Jan. 2025
There was the lesion, the scans, the meds and the debilitating reactions to too much stimuli, which flared up when his three rambunctious children hit overdrive.
—Bryce Miller, San Diego Union-Tribune, 21 Jan. 2025
Extra flaky, tough skin might also signal psoriasis, an autoimmune disorder that triggers keratin overproduction (resulting in scaly and more inflamed lesions) or eczema (especially if your symptoms are paired with relentless itchiness).
—Jenna Ryu, SELF, 9 Jan. 2025
Other lesions that bleed, such as ulcers and hemorrhoids, can also contribute to iron depletion.
—Caroline C. Boyle, USA TODAY, 19 Dec. 2024
See all Example Sentences for lesion
Dictionary Entries Near lesion
Cite this Entry
“Lesion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lesion. Accessed 6 Feb. 2025.
Copy CitationKids Definition
lesion
noun
le·sion
ˈlē-zhən 
: a change in the structure of a bodily organ or part due to injury or disease
especially
: an injured or diseased spot or area clearly marked off from healthy tissue around it
Medical Definition
Legal Definition
lesion
noun
le·sion
ˈlē-zhən
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 enrichmentEtymology
Anglo-French, damage, injury, from Latin laesio, from laedere to injure
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