Neptunian /(?)/

Nep·tu·ni·an

Neptunian

prop. a.
  1. Of or pertaining to the ocean or sea.
  2. Formed by water or aqueous solution; as, Neptunian rocks. (Geol.)

Phrases & Compounds
Neptunian races
the Malay and Polynesian races.
Neptunian theory
the theory of Werner, which referred the formation of all rocks and strata to the agency of water; -- opposed to the Plutonic theory.

Neptunian

prop. n.
  1. One who adopts the Neptunian theory. (Geol.)