A phiale is an ancient Greek handless, footless bowl used for drinking wine or offering libations. The phiale mesomphalos has a hollow, raised boss (the ὀμφᾰλός or “navel”) at the center to facilitate holding it. It can be made of fired clay, metal or glass. See also: patera.

Phiale mesomphalos with four youths hunting deer. Gilt silver. Late 5th century BCE. Metropolitan Museum of Art, New York.