at·ro·phy /ˈætrəfi/ verb (atrophied, atrophying) [intransitiveI, transitiveT] MIif a part of the body atrophies or is atrophied, it becomes weak because of lack of use or lack of blood (使)〔身体部位〕萎缩,(使)衰退 therapy to prevent the leg muscles from atrophying 防止腿部肌肉萎缩的疗法
—atrophy noun [uncountableU]