1. having experienced or undergone dedifferentiation or the loss of specialization in form or function; - Example: "the hebephrenic--the most severely dedifferentiated of all schizophrenic patients"
WordNet (r) 3.0 (2006):
dedifferentiated
adj 1: having experienced or undergone dedifferentiation or the
loss of specialization in form or function; "the
hebephrenic--the most severely dedifferentiated of all
schizophrenic patients"