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n. A pressure-induced ulceration of the skin occurring in persons confined to bed for long periods of time. Also called decubitus ulcer.

n. A lesion caused by unrelieved pressure to any part of the body, especially portions over bony or cartilaginous areas, such as frequently develops on a person confined to a bed by infirmity.

n. A sore on the back or hips caused by lying for a long time in bed.

n. A very troublesome kind of ulcer, liable to appear on patients long confined in bed and either unable or not allowed to change their position. Bed-sores occur at the parts pressed by the weight of the body, chiefly over the sacrum and trochanters, and on the elbows and heels. Also called decubitus.

n. a chronic ulcer of the skin caused by prolonged pressure on it (as in bedridden patients)

"I've never ever had a pressure ulcer also called a "bedsore" or decubitus ulcer anywhere on my body, including my tailbone, in part because I've spent quite a bit of time lobbying on it's behalf every time I put my body into strangers' hands, lay on a hard x-ray table, or require other people's assistance in keeping it healthy."

ulceration    ulcer   

pressure ulcer    decubitus