WordWeb Online

1. A decrease in size of an organ caused by disease or disuse
   - wasting, wasting away
    
2. Any weakening or degeneration (especially through lack of use)
   - withering

1. Undergo atrophy
   "Muscles that are not used will atrophy"

Derived forms: atrophies, atrophying, atrophied

Type of: shrink, shrivel, shrivel up, symptom, weakening, wither

Encyclopedia: Atrophy