資料來源 : pyDict

啞,緘默症

資料來源 : 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.

資料來源 : WordNet®

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