Medical term for the wasting away or shrinkage of a body part or tissue, often used in compound disease names.
Muscular atrophy is a disease in which muscles gradually weaken.
He was diagnosed with spinal muscular atrophy.
multiple system atrophy; MSA
olivopontocerebellar atrophy; OPCA
Compound of 萎縮 (いしゅく, 'atrophy, shrinkage') and 症 (しょう, 'disease, condition').