plu·​ton | \ ˈplü-ˌtän How to pronounce pluton (audio) \

Definition of pluton

: a typically large body of intrusive igneous rock

Examples of pluton in a Sentence

Recent Examples on the Web Called a pluton by geologists, the Barre granite formation is calculated to be four miles long, two miles wide and 10 miles deep. Walter Nicklin, Washington Post, 16 June 2022 In Nevada, for instance, geologists find fibers associated with jagged landscape formed by plutons, which are huge rock formations caused by liquid magma forced upward into the cooler crust and then solidifying. Deborah Blum, WIRED, 17 Jan. 2014

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pluton.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of pluton

1934, in the meaning defined above

History and Etymology for pluton

probably back-formation from plutonic

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Dictionary Entries Near pluton

Pluto monkey



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Statistics for pluton

Last Updated

27 Jun 2022

Cite this Entry

“Pluton.” Dictionary, Merriam-Webster, Accessed 14 Aug. 2022.

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