Lesion
//ˈliːʒən// noun, verb
noun, verb ·Moderate ·High school level
Definitions
Noun
- 1 A wound or injury.
- 2 any localized abnormal structural change in a bodily part wordnet
- 3 An infected or otherwise injured or diseased organ or part, especially such on a patch of skin.
- 4 an injury to living tissue (especially an injury involving a cut or break in the skin) wordnet
- 5 Any compound formed from damage to a nucleic acid.
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- 6 Injury or an unfair imbalance in a commutative contract wherein the consideration is less than half of the market value, which then serves as a basis for the injured party to sue to rescind the agreement.
Verb
- 1 To wound or injure, especially in an experiment or other controlled procedure. transitive
Example
More examples"Tom suffers from a skin lesion on his back."
Etymology
From Middle English lesioun, from Old French lesion, from Latin laesiō (“injury”), itself from laesus, perfect passive participle of laedō (“I injure, hurt”).
Related phrases
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.