DICT.TW Dictionary Taiwan

 formication
 蟻走感

 for·mi·ca·tion /ˌfɔrməˈkeʃən/ 名詞

 For·mi·ca·tion n.  Med. A sensation resembling that made by the creeping of ants on the skin.
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 formication
      n : hallucinated sensation that insects or snakes are crawling
          over the skin; a common side-effect of extensive use of
          cocaine or amphetamines