Plutonic action(Geol.), the influence of volcanic heat and other subterranean forces under pressure.Plutonic rocks(Geol.), granite, porphyry, and some other igneous rocks, supposed to have consolidated from a melted state at a great depth from the surface. Cf. Intrusive rocks, under Intrusive.Plutonic theory. (Geol.) See Plutonism.

(Plu"to*nism) n. [Cf. F. plutonisme.] 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.

(Plu"to*nist) n. [Cf. F. plutoniste.] One who adopts the geological theory of igneous fusion; a Plutonian. See Plutonism.

(Plu"tus) n. [L., fr. Gr. .] (Class. Myth.) The son of Jason and Ceres, and the god of wealth. He was represented as bearing a cornucopia, and as blind, because his gifts were bestowed without discrimination of merit.

(Plu"vi*al), a. [L. pluvialis, fr. pluvia rain: cf. F. pluvial. See Plover.]

1. Of or pertaining to rain; rainy. [R.]

2. (Geol.) Produced by the action of rain.

(Plu"vi*al), n. [LL. pluviale a garment which keeps off the rain: cf. F. pluvial.] A priest's cope.

(Plu`vi*am"e*ter) n. See Pluviometer.

(Plu`vi*a*met"ric*al) a. See Pluviometrical.

(Plu"vi*an) n. (Zoöl.) The crocodile bird.

(Plu`vi*om"e*ter) n. [L. pluvia rain + -meter: cf. F. pluviomètre.] An instrument for ascertaining the amount of rainfall at any place in a given time; a rain gauge.

(Plu`vi*o*met"ric*al) a. [Cf. F. pluviométrique.] Of or pertaining to a pluviometer; determined by a pluviometer.

(||Plu`vi`ôse") n. [F. See Pluvious.] The fifth month of the French republican calendar adopted in 1793. It began January 20, and ended February 18. See Vendémiaire.

(Plu"vi*ous) a. [L. pluviosus, pluvius, fr. pluvia rain: cf. F. pluvieux. See Pluvial, a.] Abounding in rain; rainy; pluvial. Sir T. Browne.

(Ply) v. t. [imp. & p. p. Plied ; p. pr. & vb. n. Plying ] [OE. plien, F. plier to fold, to bend, fr. L. plicare; akin to Gr. G. flechten. Cf. Apply, Complex, Display, Duplicity, Employ, Exploit, Implicate, Plait, Pliant, Flax.]

1. To bend. [Obs.]

As men may warm wax with handes plie.

(Plu*to"ni*an) n. (Geol.) A Plutonist.

(Plu*ton"ic) a. [Cf. F. plutonique. See Pluto.]

1. Of or pertaining to Pluto; Plutonian; hence, pertaining to the interior of the earth; subterranean.

2. Of, pertaining to, or designating, the system of the Plutonists; igneous; as, the Plutonic theory.

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