'Satanist' definitions:

Definition of 'Satanist'

From: WordNet
noun
An adherent of Satan or Satanism [syn: Satanist, diabolist]

Definition of 'Satanist'

From: GCIDE
  • Satanist \Sa"tan*ist\, n.
  • 1. A very wicked person. [R.] --Granger. [1913 Webster]
  • 2. A worshiper of Satan. [PJC]