Webster's 1828 Dictionary
PLUTONIC
a.[from Pluto, in mythology, the king of the infernal regions.] Pertaining to or designating the system of the Plutonists; as the Plutonic theory.
Webster's 1913 Dictionary
PLUTONIC
Plu *ton "ic, a. Etym: [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. 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.
New American Oxford Dictionary
plutonic
plu ton ic |plo͞oˈtänik pluˈtɑnɪk | ▶adjective 1 Geology relating to or denoting igneous rock formed by solidification at considerable depth beneath the earth's surface. 2 ( Plutonic ) relating to the underworld or the god Pluto.
Oxford Dictionary
plutonic
plu |ton ¦ic |pluːˈtɒnɪk | ▶adjective 1 Geology relating to or denoting igneous rock formed by solidification at considerable depth beneath the earth's surface. 2 ( Plutonic ) relating to the underworld or the god Pluto.
Spanish Dictionary
plutónico, -ca
plutónico, -ca adjetivo [roca ] Que se ha formado en el interior de la corteza terrestre por enfriamiento lento del magma, dando tiempo a que sus componentes cristalicen :el granito es una roca plutónica .
The Wordsmith Dictionary