lesion

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le·sion / ˈlēzhən/ • n. chiefly Med. a region in an organ or tissue that has suffered damage through injury or disease, such as a wound, ulcer, abscess, tumor, etc.

The Oxford Pocket Dictionary of Current English

lesion

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lesion A structural abnormality of any type in some part of the body. A lesion may be congenital (present from birth) or subsequently acquired. Within the acquired category a lesion may be traumatic (wound, burn, fracture), inflammatory (infective or toxic) degenerative (e.g. osteoarthritis, arteriosclerosis), or neoplastic (benign or malignant growth).

Stuart Judge

The Oxford Companion to the Body COLIN BLAKEMORE and SHELIA JENNETT

lesion

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lesion XV. — (O)F. lésion — L. læsiō, -ōn-, f. lædere, læs- injure, hurt; see -SION.

The Concise Oxford Dictionary of English Etymology T. F. HOAD

lesion

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lesion (lee-zhŏn) n. a zone of tissue with impaired function as a result of damage by disease or wounding.

A Dictionary of Nursing

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