An·to·ni·nus /ˌæntəˈnaɪnəs/
  Antoninus
       n : Emperor of Rome; nephew and son-in-law and adoptive son of
           Antonius Pius; Stoic philosopher; the decline of the
           Roman Empire began under Marcus Aurelius (121-180) [syn:
           Aurelius, Marcus Aurelius, Marcus Aurelius Antoninus,
            Marcus Annius Verus]