WordNet (r) 3.0 (2006):

bulima nervosa
    n 1: a disorder of eating in which the person alternates between
         strong craving for food and aversion to food; characterized
         by excessive eating followed by periods of fasting or self-
         induced vomiting [syn: bulimarexia, binge-purge
         syndrome, binge-vomit syndrome, bulima nervosa]