Neptunian

Definition of Neptunian

Nep`tu´ni`an

prop. a.

(Geol.) Formed by water or aqueous solution; as, Neptunian rocks.

Neptunian races
(Ethnol.) the Malay and Polynesian races.

Neptunian theory
(Geol.) the theory of Werner, which referred the formation of all rocks and strata to the agency of water; - opposed to the Plutonic theory.

prop. n.

(Geol.) One who adopts the Neptunian theory.

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