ornicofagomania is incorrectly written, and should be written as "onicofagia" as meaning: Of Greek etymology: onyks onychos:, phagomai: eat and mania Mania: Madness: mania eat nails. It is a compulsive tendency or habit obsessive biting the end of the fingernails. This behavior occurs mostly in adolescents of some people and can be extended to adult life. According to psychologists, it can be the symptom of other problems mentally, such as insecurity, guilt or other imbalances. Psychology have solutions for these problems, but to rely on a specialist.