bulimic

Concise Oxford English Dictionary © 2008 Oxford University Press:
bulimia /bjʊˈlɪmɪə, bʊ-/ (also bulimia nervosa)

▶noun an emotional disorder characterized by bouts of overeating, typically alternating with fasting or self-induced vomiting or purging.

– derivatives
bulimic adjective & noun.

– origin ME (as bolisme, later bulimy): mod. L., or from med. L. bolismos, from Gk boulimia ‘ravenous hunger’, from bous ‘ox’ + limos ‘hunger’.