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 parallels between the bog environment and TB lung lesions strengthen the potential of this approach.
—
Tom Howarth, Newsweek, 3 Dec. 2024
But people with Crohn’s disease may be more likely to notice oral lesions before any other symptoms appear.
—Sarah Klein, TIME, 2 Dec. 2024
Dermatology Dermatology involves assessment of rashes and skin lesions, commonly as referrals from generalist physicians and in patients seeking care directly.
—Jesse Pines, Forbes, 4 Nov. 2024
In addition, recent research showed IPL treatments effective in managing skin lesions: bumps or patches of irregular skin.7
How Laser Types Compare
The laser used to treat rosacea depends on the symptoms.
—Mark Gurarie, Verywell Health, 2 Dec. 2024
See all Example Sentences for lesion 
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Tom Howarth, Newsweek, 3 Dec. 2024
But people with Crohn’s disease may be more likely to notice oral lesions before any other symptoms appear.
—Sarah Klein, TIME, 2 Dec. 2024
Dermatology Dermatology involves assessment of rashes and skin lesions, commonly as referrals from generalist physicians and in patients seeking care directly.
—Jesse Pines, Forbes, 4 Nov. 2024
In addition, recent research showed IPL treatments effective in managing skin lesions: bumps or patches of irregular skin.7
How Laser Types Compare
The laser used to treat rosacea depends on the symptoms.
—Mark Gurarie, Verywell Health, 2 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 28 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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