Source : Webster's Revised Unabridged Dictionary (1913)

Alalia \A*la"li*a\, n. [NL., fr. Gr. ? priv. + ? a talking; cf.
   ? 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.

Source : WordNet®

alalia
     n : paralysis of the vocal cords resulting in an inability to
         speak