ˈsāt ə nˌizəm also -təˌni- noun
( -s )
Usage: often capitalized
Etymology: satan + -ism
1. : innate wickedness : diabolism
the satanism of Hitlers and Mussolinis — Walter Moberly
2. : obsession with or affinity for evil
both in her verse and her one solitary stupendous novel we find … this Satanism embodied and expressed — J.A.Bramley
specifically : the worship of Satan reputedly practiced by various writers in Paris in the 1890s marked by the travesty of Christian rites
interpretation of Satanism as an offshoot of the belief in two coequal and coeternal principles of good and evil … deriving ultimately from Zoroastrianism — Times Literary Supplement