Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for neptune from the 1913 edition of Webster's Revised Unabridged Dictionary. Define neptune using one of the most comprehensive free online dictionaries on the web.

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neptune
Part of Speech: noun
Results: 2
1. 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.
2. 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.
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