Poseidon(redirected from Poseidon (mythology))
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n. Greek Mythology
The god of the waters, earthquakes, and horses, and brother of Zeus.
1. (Classical Myth & Legend) Greek myth the god of the sea and of earthquakes; brother of Zeus, Hades, and Hera. He is generally depicted in art wielding a trident. Roman counterpart: Neptune
2. (Firearms, Gunnery, Ordnance & Artillery) a US submarine-launched ballistic missile
Po•sei•don(poʊˈsaɪd n, pə-)
the ancient Greek god of the sea and of horses: identified by the Romans with Neptune.