lesion

views updated May 17 2018

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.

lesion

views updated May 29 2018

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

lesion

views updated May 23 2018

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

lesion

views updated May 11 2018

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

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