Definition of antoninianus in English:

antoninianus

noun

obsolete Numismatics
  • Originally (in plural): †coinage issued by one or more of the Antonine Roman emperors (obsolete). Later: a name given to a Roman coin of the third century having a bust of the emperor wearing a radiate crown on the obverse, with an original face value of two denarii.

Origin

Mid 18th century. From post-classical Latin Antoninianus, denoting a coin, use as noun of masculine of Antoninianus (adjective) of or relating to one of the Antonine emperors (3rd cent.) from classical Latin Antōnīnus, a cognomen of several Roman emperors + -iānus.

Pronunciation

antoninianus

/ˌantənɪnɪˈɑːnəs/