Synonyms of neptune

Noun

1. Neptune

usage: (Roman mythology) god of the sea; counterpart of Greek Poseidon

2. Neptune

usage: a giant planet with a ring of ice particles; the 8th planet from the sun is the most remote of the gas giants; "the existence of Neptune was predicted from perturbations in the orbit of Uranus and it was then identified in 1846"

Definition and meaning of neptune (Dictionary)