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 result is usually the result of lesions in the brain involved in identifying unique facial figures.
—
Scott Lafee, San Diego Union-Tribune, 23 Dec. 2025
But in June the FDA approved EMROSI, an oral medication that directly targets the lesions while being gentle enough for aging skin.
—Helen Carefoot, Flow Space, 23 Dec. 2025
One woman, Megan Bent, recounted the story of her father, who was in a rehab facility after surgery to remove a cancerous lesion from his brain.
—Dhruv Khullar, New Yorker, 19 Dec. 2025
Treatment for vocal cord lesions can include voice therapy, surgery and lifestyle changes such as quitting smoking, reducing stress and improving one's diet, according to Cleveland Clinic.
—Edward Segarra, USA Today, 19 Dec. 2025
See All Example Sentences for lesion
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Scott Lafee, San Diego Union-Tribune, 23 Dec. 2025
But in June the FDA approved EMROSI, an oral medication that directly targets the lesions while being gentle enough for aging skin.
—Helen Carefoot, Flow Space, 23 Dec. 2025
One woman, Megan Bent, recounted the story of her father, who was in a rehab facility after surgery to remove a cancerous lesion from his brain.
—Dhruv Khullar, New Yorker, 19 Dec. 2025
Treatment for vocal cord lesions can include voice therapy, surgery and lifestyle changes such as quitting smoking, reducing stress and improving one's diet, according to Cleveland Clinic.
—Edward Segarra, USA Today, 19 Dec. 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 31 Dec. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share