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neptunian

neptunian is defined in Webster's Unabridged Dictionary (1913) with 2 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.(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.
  2. 2.One who adopts the neptunian theory.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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