an ulceration of the skin and subcutaneous tissue caused by poor circulation due to prolonged pressure on body parts, especially bony protuberances, occurring in bedridden or immobile patients; decubitus ulcer.
Historical Examples

Certain forms of bed-sore are also due to prolonged pressure.
Manual of Surgery Alexis Thomson and Alexander Miles

With due watchfulness and care on the part of the nurse a bed-sore ought rarely to occur.
A System of Operative Surgery, Volume IV (of 4) Various

the nontechnical name for decubitus ulcer

“gangrene caused by anemia due to continued pressure,” 1833, from bed (n.) + sore (n.)

bedsore bed·sore (běd’sôr’)
A pressure-induced ulceration of the skin occurring in persons confined to bed for long periods of time. Also called decubitus ulcer, pressure sore.


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