dystrophy
Concise Oxford English Dictionary © 2008 Oxford University Press:
dystrophy /ˈdɪstrəfi/
▶noun Medicine a disorder in which an organ or tissue of the body wastes away. See also muscular dystrophy.
– origin C19: from mod. L. dystrophia, from Gk dus- ‘bad’ + -trophia ‘nourishment’.
'dystrophy' also found in these Oxford entries:

