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Definition of Plutonism
1. n. The theory, early advanced in geology, that the successive rocks of the earth\'b6s crust were formed by igneous fusion; -- opposed to the Neptunian theory.
Definition of Plutonism
1. [n -S]
Medical Definition of Plutonism
1. The theory, early advanced in geology, that the successive rocks of the earth's crust were formed by igneous fusion; opposed to the Neptunian theory. Origin: Cf. F. Plutonisme. Source: Websters Dictionary (01 Mar 1998)