from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An often subterranean or semisubterranean temple dedicated to the worship of Mithras.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a place of worship for the followers of Mithraism
from The Century Dictionary and Cyclopedia
- n. In Roman antiquity, a shrine or sanctuary of Mithras: usually an underground cell, grotto, or crypt in which the secret mysteries of Mithras were celebrated.
New Latin, from Greek Mithraion, from Mithrās, Mithras; see Mithras.(American Heritage® Dictionary of the English Language, Fourth Edition)