From Longman Dictionary of Contemporary Englisheating disorderˈeating disˌorder noun [countable] MIa medical condition in which you do not eat a normal amount of food and are ill because of this → bulimia
Examples from the Corpus
eating disorder• We have eating disorder programs in certain major cities-in cities where people feel compelled to have a certain physical presence.• Thus the compulsive relationship with physical exercise can become effectively part of the spectrum of eating disorder behaviour.• It might have had something to do with her illness, the eating disorder bulimia. 