| hebephrenic | (adj) suffering from a form of schizophrenia characterized by foolish mannerisms and senseless laughter along with delusions and regressive behavior |
| hebephrenia | (n) a form of schizophrenia characterized by severe disintegration of personality including erratic speech and childish mannerisms and bizarre behavior; usually becomes evident during puberty; the most common diagnostic category in mental institutions, Syn. disorganized type schizophrenia, hebephrenic schizophrenia, disorganized schizophrenia |