• definitions


[ ploo-ton-ik ]SEE DEFINITION OF plutonic

Synonyms for plutonic

  • abyssal
  • cimmerian
  • igneous
  • infernal
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.


As to flint, that would not be wanting in these regions of Plutonic origin.

He has neither the cunning nor the ambition to establish the Plutonic empire with it.

In the Plutonic system, there is one simple and constant order assumed, which may be supposed eternal.

The plutonic rocks which penetrate them are generally granite of various degrees of firmness.

They loved their city and worked for it with a plutonic energy which was always ardently vocal.

Here, amid these Plutonic peaks, are the energies of volcanic action best studied.

They also are seen, in some instances, to pass insensibly into the unstratified division of a, or the Plutonic rocks.

In its course it affords a good exemplification of the passage from the trappean into the plutonic, or highly crystalline texture.

From this hypothesis of the great depth at which the granites originated, has been derived the name of "Plutonic rocks."

The plutonic rocks may be treated of next in order, as they are most nearly allied to the volcanic class already considered.


"pertaining to or involving intense heat deep in the earth's crust," 1796, coined by Irish scientist Richard Kirwin (1733-1812) from comb. form of Pluto (as god of the underworld) + -ic. Especially in reference to early 19c. geological theory (championed by Hutton) that attributed most of the earth's features to action of internal heat, a theory which triumphed over its rival, neptunism, which attributed them to water. Related: Plutonism; Plutonist.