Found 1 items, similar to Neptunian theory.
English → English (gcide) Definition: Neptunian theory Neptunian \Nep*tu"ni*an\, prop. a. [L. Neptunius belonging to Neptune: cf. F. neptunien.] 1. Of or pertaining to the ocean or sea. [1913 Webster] 2. (Geol.) Formed by water or aqueous solution; as, Neptunian rocks. [1913 Webster] 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. [1913 Webster]