Bulimia (noun):
A serious eating disorder characterized by episodes of binge eating followed by behaviors to prevent weight gain, such as vomiting, fasting, or excessive exercise.
Noun (uncountable)
Bulimia involves consuming large amounts of food in a short period (bingeing), followed by purging to avoid gaining weight. The condition often leads to feelings of guilt, shame, and loss of control. It is associated with distorted body image and frequently coexists with other mental health conditions, such as depression and anxiety.
She was diagnosed with bulimia after years of disordered eating habits and emotional distress.
Used without an article when referring to the disorder:
Author’s Summary:
Bulimia is an eating disorder marked by recurrent bingeing and purging driven by fear of weight gain and distorted body perception.