资料来源 : pyDict

哑,缄默症

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Mutism \Mut"ism\, n.
   The condition, state, or habit of being mute, or without
   speech. --Max M["u]ller.

资料来源 : WordNet®

mutism
     n : the condition of being unable or unwilling to speak