lesion

[ lee-zhuhn ]

noun

1. an injury; hurt; wound.
2. Pathology. any localized, abnormal structural change in the body.
3. Plant Pathology. any localized, defined area of diseased tissue, as a spot, canker, blister, or scab.

verb (used with object)

1. to cause a lesion or lesions in.

lesion

/ ˈliːʒən /

noun

1. any structural change in a bodily part resulting from injury or disease
2. an injury or wound

Word History and Origins

Origin of lesion¹

First recorded in 1425–75; late Middle English, from Middle French, from Latin laesiōn-, stem of laesiō “injury,” from Latin laes(us) “harmed” (past participle of laedere “to harm”) + -iō -ion

Word History and Origins

Origin of lesion¹

C15: via Old French from Late Latin laesiō injury, from Latin laedere to hurt

Example Sentences

Last week, about a dozen patients, some with skin lesions from head to toe, were isolated in a white tent, waiting for lab confirmation they had mpox.

From Science Magazine

Moreover, some subtle lesions of the knee joint may easily be overlooked by radiologists with insufficient experience.

From Science Daily

"AI programs can help determine quickly what type of disease it is, what subtype of tumor and what particular grade it is, in addition to helping track the progress of a lesion during treatment."

From Science Daily

For the research, the team administered questionnaires to 147 men and women who had responded to newspaper ads after identifying suspicious lesions on their skin.

From Science Daily

The twelfth monkey died on Tuesday and early results indicated that it too had "similar lesions... in the tissues of its organs", officials said.

From BBC

Related Words

• abrasion
• bruise
• contusion
• laceration
• sore