DICT.TW Dictionary Taiwan

 ar·ca·num /ɑrˈkenəm/
 祕密,奧祕,秘藥

 Ar·ca·num n.; pl. Arcana
 1. A secret; a mystery; -- generally used in the plural.
    Inquiries into the arcana of the Godhead.   --Warburton.
 2. Med. A secret remedy; an elixir.
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 arcanum
      n : information known only to a special group; "the secret of
          Cajun cooking" [syn: secret]
      [also: arcana (pl)]