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
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The leaves affected by scorch are usually on the sunny or windy side of the tree, while leaf blotch affects most leaves with tiny black fruiting bodies present on the lesions.
—
Tim Johnson, Chicago Tribune, 3 Nov. 2024
The quality of imaging can make the difference between finding a small lesion early or in its later stages, potentially affecting patient outcomes and disease management.
—Rick Barrett, Journal Sentinel, 25 Oct. 2024
This first-of-its-kind breast scan rotates around the breast, instead of compressing it, and has the capabilities of capturing the smallest lesions for early and accurate diagnosis.
—Lauryn Higgins, Flow Space, 22 Oct. 2024
This is helpful in patients with hard to locate seizure origins, and in patients with multiple, extensive lesions where traditional MRI could not provide further localizing clue.
—Randy Bean, Forbes, 6 Oct. 2024
See all Example Sentences for lesion 
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Tim Johnson, Chicago Tribune, 3 Nov. 2024
The quality of imaging can make the difference between finding a small lesion early or in its later stages, potentially affecting patient outcomes and disease management.
—Rick Barrett, Journal Sentinel, 25 Oct. 2024
This first-of-its-kind breast scan rotates around the breast, instead of compressing it, and has the capabilities of capturing the smallest lesions for early and accurate diagnosis.
—Lauryn Higgins, Flow Space, 22 Oct. 2024
This is helpful in patients with hard to locate seizure origins, and in patients with multiple, extensive lesions where traditional MRI could not provide further localizing clue.
—Randy Bean, Forbes, 6 Oct. 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 3 Dec. 2024.
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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