1.
bedsore; pressure sore; decubitus ulcer
A skin injury caused by prolonged pressure on the body, typically occurring in people who are bedridden or unable to change position. A common concern in nursing care.
Composed of 床 (bed) + ずれ (rubbing: the voiced form of 擦れ, from 擦れる; also written 床擦れ). The formal medical term is 褥瘡 (decubitus ulcer). Common collocations: 床ずれを防ぐ (to prevent bedsores), 床ずれ予防 (bedsore prevention), 床ずれ防止マット (pressure relief mat). An important concept in 介護 (caregiving) — turning bedridden patients every two hours is standard practice.