1. An abnormal desire to be closed in and to shut all windows and doors: "Jack's parents recalled how because of his claustrophilia, Jack always preferred to close himself off from contact with the outside."
2. A pathological desire to be confined and enclosed within a small living area: "Patients who have claustrophilia usually show a predilection or a special preference for introversion and isolation; often with a strong need for solitude and silence."