The Collaborative International Dictionary of English v.0.48:

Luciferian \Lu`ci*fe"ri*an\, a.
   1. Of or pertaining to Lucifer; having the pride of Lucifer;
      satanic; devilish.
      [1913 Webster]

   2. Of or pertaining to the Luciferians or their leader.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Luciferian \Lu`ci*fe"ri*an\, n. (Eccl. Hist.)
   One of the followers of Lucifer, bishop of Cagliari, in the
   fourth century, who separated from the orthodox churches
   because they would not go as far as he did in opposing the
   Arians.
   [1913 Webster]