apha's ia (ah-fa'se-ah)

An impairment of the power of intellectual expre ion due to lesions in the brain, a mnemonic a., amnesic a., amnestic a. Word deafne , a. universal is. Complete a., in which the patient can not speak a single word, ataxic a. A. dependent on impairment or lo of the power of properly saying words due to central lesion, functional a. A. not dependent on a manifest cerebral lesion, but occurring as a congenital defect, in severe constitutional diseases, or as the result of emotional excitement in hysterical persons, insular a. A. due to a lesion strictly confined to the island of Pveil. traumatic a. A. due to injury of the head. [Gr., a, priv., + phasis, speech.]