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ultrametamorphism

American

[uhl-truh-met-uh-mawr-fiz-uhm] / ˌʌl trəˌmɛt əˈmɔr fɪz əm /

noun

Geology.

metamorphism during which the temperature of a rock exceeds its melting point.

Other Word Forms

ultrametamorphic

adjective

Etymology

Origin of ultrametamorphism

ultra- + metamorphism

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.