- The son of Saturn and Ops, the god of the waters,
especially of the sea. He is represented as bearing a trident for a
scepter. - The remotest known planet of our system, discovered -- as
a result of the computations of Leverrier, of Paris -- by Galle, of
Berlin, September 23, 1846. Its mean distance from the sun is about
2,775,000,000 miles, and its period of revolution is about 164,78
years.
Meaning of 'neptune' (Princeton's WordNet)
1 . neptune
[ n]
Meaning (1): - a giant planet with a ring of ice particles; the 8th planet from the sun is the most remote of the gas giants
Example in sentence:
the existence of Neptune was predicted from perturbations in the orbit of Uranus and it was then identified in 1846