bulimic

noun

1. Med. a continuous, abnormal hunger
2. an eating disorder, chiefly in young women, characterized by the gorging of large quantities of food followed by purging, as through self-induced vomiting
   in full bulimia nervosa

Origin: ModL < Gr boulimia < bous, ox, cow + limos, hunger < ? IE base *lei-, to diminish, meager > little