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Webster 1913 Edition

Plutonic

Plu-ton′ic

,
Adj.
[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
.

Webster 1828 Edition

Plutonic

PLUTON'IC

,
Adj.
[from Pluto, in mythology, the king of the infernal regions.] Pertaining to or designating the system of the Plutonists; as the Plutonic theory.

Definition 2024

Plutonic

Plutonic

See also: plutonic

English

Adjective

Plutonic ‎(comparative more Plutonic, superlative most Plutonic)

  1. Plutonian; relating to the god Pluto or to the underworld.

plutonic

plutonic

See also: Plutonic

English

Adjective

plutonic ‎(not comparable)

  1. (mineralogy) Of an igneous rock that cooled and hardened below the Earth's surface.

Synonyms

Related terms

Translations

Etymology

From French plutonique ‎(“of or pertaining to Pluto, the underworld, interior of the Earth”)

Pronunciation

  • (UK) IPA(key): /pluːˈtɒn.ɪk/

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