Nau'ma-chy, n.

n. [Gr. ναυμαχία, from ναῦς, ship, and μάχη, fight, combat, battle, μάχεσθαι, to fight, combat; Lat. naumachia, Fr. naumachie.]

1. A naval combat; especially, a mock sea-fight; hence (Rom. Antiq.), a show or spectacle representing a sea-fight.
2. The place where these shows were exhibited.