Demoniac \De*mo"ni*ac\, Demoniacal \Dem`o*ni"a*cal\ (?; 277), a.
   [L. daemoniacus, fr. daemon; cf. F. d['e]moniaque. See
   {Demon}.]
   1. Pertaining to, or characteristic of, a demon or evil
      spirit; devilish; as, a demoniac being; demoniacal
      practices.
      
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            Sarcastic, demoniacal laughter.       --Thackeray.
      
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   2. Influenced or produced by a demon or evil spirit; as,
      demoniac or demoniacal power. "Demoniac frenzy." --Milton.
      
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   3. resembling or suggesting possession by a demon; as,
      demoniac energy.
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   4. in a murderous frenzy as if possessed by a demon.

   Syn: amuck, amok, berserk, demoniac, possessed(predicate).
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Demoniac \De*mo"ni*ac\, n.
   1. A human being possessed by a demon or evil spirit; one
      whose faculties are directly controlled by a demon.
      
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            The demoniac in the gospel was sometimes cast into
            the fire.                             --Bates.
      
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   2. (Eccl. Hist.) One of a sect of Anabaptists who maintain
      that the demons or devils will finally be saved.
      
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