Noun
(historical) A Roman unit of liquid measure reckoned as the volume of 1⅔ Roman ounce of wine and equivalent to about 45 mL although differing slightly over time.
Synonym of ladle, especially (historical) a small one used for serving wine in ancient Greece and Rome.
(historical) Synonym of kyathos, an ancient ladle and serving beaker.
Source: en.wiktionary.org