a. [ L. Plutonius, Gr. &unr_;: cf. F. plutonien. ] Plutonic. Poe. [ 1913 Webster ]
n. (Geol.) A Plutonist. [ 1913 Webster ]
a. [ Cf. F. plutonique. See Pluto. ]
Plutonic action (Geol.),
Plutonic rocks (Geol.),
Plutonic theory. (Geol.)
n. [ Cf. F. plutonisme. ] 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. [ 1913 Webster ]
n. [ Cf. F. plutoniste. ] One who adopts the geological theory of igneous fusion; a Plutonian. See Plutonism. [ 1913 Webster ]