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

In considering this branch of inquiry, we are not involved in a preliminary difficulty regarding the very nature of the agencies as is the case in the investigation of plutonic action.

From Project Gutenberg

We would crawl round such an occupying structure, diminished groundlings, as one would move about the base of a foreboding, plutonic building whose limits and meaning were ominous and baffling.

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