cauterant
  腐蝕劑,腐蝕的
  cau·ter·ant /ˈkɔtərənt/ 名詞
  腐蝕劑,腐蝕的
  Cau·ter·ant n. A cauterizing substance.
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  cauterant
       n : an instrument or substance used to destroy tissue for
           medical reasons (eg removal of a wart) by burning it with
           a hot iron or an electric current or a caustic or by
           freezing it [syn: cautery]