The Collaborative International Dictionary
Neptunian races
Neptunian \Nep*tu"ni*an\, prop. a. [L. Neptunius belonging to Neptune: cf. F. neptunien.]
Of or pertaining to the ocean or sea.
-
(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.