Wordnet 3.0
NOUN (1)
1.
ancient Persian religion;
popular among Romans during first three centuries a.d.;
[syn: Mithraism, Mithraicism]
The Collaborative International Dictionary of English v.0.48:
Mithraism \Mithraism\ prop. n.
The ancient Persian religion which worshiped Mithra; it was
popular among Romans during first three centuries a. d.
Syn: Mithraicism.
[WordNet 1.5]
WordNet (r) 3.0 (2006):
Mithraism
n 1: ancient Persian religion; popular among Romans during first
three centuries a.d. [syn: Mithraism, Mithraicism]