- The definition of a lesion is a wound or an area of the body that has been damaged through injury or disease.
An open wound is an example of a lesion.
- an injury; hurt; damage
- an injury or other change in an organ or tissue of the body tending to result in impairment or loss of function
Origin of lesionMiddle English ; from Middle French ; from Classical Latin laesio ; from laesus, past participle of laedere, to harm, injure
transitive verble·sioned, le·sion·ing, le·sions
Origin of lesionMiddle English lesioun, from Old French lesion, from Latin laesiō, laesiōn-, from laesus, past participle of laedere, to injure.
(third-person singular simple present lesions, present participle lesioning, simple past and past participle lesioned)
- To wound or injure, especially in an experiment or other controlled procedure.
From Middle English, from Middle French, from Latin laesiÅ (â€œinjuryâ€), itself from laesus, perfect passive participle of laedÅ (â€œI injure, hurtâ€).