Examples from the Web for plutonic
Down to a comparatively recent period, it would seem to have been the theatre of plutonic phenomena of an extraordinary character.Some Heroes of Travel|W. H. Davenport Adams
The mountain itself bears the most indubitable marks of plutonic origin.Letters from the Alleghany Mountains|Charles Lanman
Boulders of plutonic rocks from this area have been widely distributed by the ice during the glacial period.
Igneous rocks in great variety and in all forms incident to an extruded or volcanic and intruded or plutonic origin are present.North America|Israel C. Russell
They loved their city and worked for it with a plutonic energy which was always ardently vocal.The Magnificent Ambersons|Booth Tarkington
British Dictionary definitions for plutonic
Word Origin for plutonic
Word Origin and History for plutonic
"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.