De*mo"ni*ac [L. daemoniacus, fr. daemon; cf. F. d'emoniaque. See Demon.]

1.

Pertaining to, or characteristic of, a demon or evil spirit; devilish; as, a demoniac being; demoniacal practices.

Sarcastic, demoniacal laughter. Thackeray.

2.

Influenced or produced by a demon or evil spirit; as, demoniac or demoniacal power.

"Demoniac frenzy."

Milton.

 

© Webster 1913.

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