‖n. [ NL., fr. Gr. &unr_; priv. + &unr_; a talking; cf. &unr_; speechless. ] (Med.) Inability to utter articulate sounds, due either to paralysis of the larynx or to that form of aphasia, called motor, or ataxis, aphasia, due to loss of control of the muscles of speech. [ Webster 1913 Suppl. ]
‖n. [ NL., fr. Gr. &unr_; priv. + &unr_; a talking; cf. &unr_; speechless. ] (Med.) Impairment of articulate speech, or inability to speak, usually due to impairment of control of muscles in the articulatory apparatus. [ Webster 1913 Suppl. + AS ]