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Meaning of maniac

ma•ni•ac

Pronunciation: (mā'nē-ak"), [key]
— n.
  1. a raving or violently insane person; lunatic.
  2. any intemperate or overly zealous or enthusiastic person: a maniac when it comes to details.
—adj.
  1. maniacal.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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