numbness
  痲木,痲痺,凍僵
  numb·ness 名詞
  痲木(感)
  Numb·ness n. The condition of being numb; that state of a living body in which it loses, wholly or in part, the power of feeling or motion.
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  numbness
       n : partial or total lack of sensation in a part of the body; a
           symptom of nerve damage or dysfunction