plutonic

American  

[ploo-ton-ik] / pluˈtɒn ɪk /

adjective

Geology.

1. noting or pertaining to a class of igneous rocks that have solidified far below the earth's surface.

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plutonic British  

/ pluːˈtɒnɪk /

adjective

1. Also: abyssal.  (of igneous rocks) derived from magma that has cooled and solidified below the surface of the earth

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Etymology

Origin of plutonic

1790–1800; < Latin Plūtōn- (stem of Plūtō Pluto < Greek Ploútōn ) + -ic; originally referring to the Plutonic theory ( plutonism )

Example Sentences

However, Page Six reports that the duo’s relationship is plutonic and not romantic.

From Fox News

A little examination of the material should tell, to even the novice, whether or not the substance is of plutonic origin.

From Project Gutenberg

The first of these divisions represents the plutonic, intrusive or subsequent phase of eruptivity; the second marks the volcanic, interstratified or contemporaneous phase.

From Project Gutenberg

Mounting high right ahead of us at last was a mass of granite boulders, with broad smooth surfaces, having the structure of gigantic masonry in ruin which weathered plutonic rock so often assumes.

From Project Gutenberg

It is covered by a plastic white or yellowish clay and clay marl, with intervening beds of quartz sandstone, formed, like the clay, by the disintegration of the plutonic rock.

From Project Gutenberg