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ENGLISH · A WORD WITH POSSIBILITIES

lesion.

A wound or injury.

6 characters2 syllables approx.English language

Meaning & usage

noun/ˈliːʒən/
  1. A wound or injury.

  2. An infected or otherwise injured or diseased organ or part, especially such on a patch of skin.

  3. Any compound formed from damage to a nucleic acid.

  4. 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.

Where this word comes from

From Middle English lesioun (“physical injuring of the body”), from Old French lesion (“hurt, offense, wrong, injury, wound”), from Latin laesiō (“hurt, harm, injury”) (whence -ion (“noun suffix denoting action, result, process, state, condition”)), from laesus (“hurt, injured, wounded, damaged”), past participle of laedō (“to strike, collide, hurt”).

verb/ˈliːʒən/
  1. To wound or injure, especially in an experiment or other controlled procedure.

    transitive
Where this word comes from

From Middle English lesioun (“physical injuring of the body”), from Old French lesion (“hurt, offense, wrong, injury, wound”), from Latin laesiō (“hurt, harm, injury”) (whence -ion (“noun suffix denoting action, result, process, state, condition”)), from laesus (“hurt, injured, wounded, damaged”), past participle of laedō (“to strike, collide, hurt”).

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.