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
The authors noted that the lesions looked significantly different from the lesions seen when white matter is damaged from a lack of blood flow, such as in a stroke.
—
Ars Technica, 11 Mar. 2025
Keeping the lesions clean, warm, and dry is important for healing.
—Laura Schober, Health, 7 Mar. 2025
Woodland was experiencing life-changing symptoms and doctors finally found the cause to be a lesion pushing onto the part of the brain that controls fear and anxiety.
—Ben Church, CNN, 2 Mar. 2025
During the two-week series of worst-case scenarios, Joe and Lauren kept bringing up the lesions on Violette's liver, but their hands were tied.
—Staff Author, People.com, 21 Feb. 2025
See All Example Sentences for lesion
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Ars Technica, 11 Mar. 2025
Keeping the lesions clean, warm, and dry is important for healing.
—Laura Schober, Health, 7 Mar. 2025
Woodland was experiencing life-changing symptoms and doctors finally found the cause to be a lesion pushing onto the part of the brain that controls fear and anxiety.
—Ben Church, CNN, 2 Mar. 2025
During the two-week series of worst-case scenarios, Joe and Lauren kept bringing up the lesions on Violette's liver, but their hands were tied.
—Staff Author, People.com, 21 Feb. 2025
See All Example Sentences for lesion
Cite this Entry
“Lesion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lesion. Accessed 19 Mar. 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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