atrophy

nouns

a decrease in size of an organ caused by disease or disuse

atrophy, wasting, wasting away

any weakening or degeneration (especially through lack of use)

atrophy, withering

undergo atrophy

"Muscles that are not used will atrophy"

atrophy

is a type of (narrower)

wither, as with a loss of moisture

"The fruit dried and shriveled"