ultrametamorphism

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

noun Geology.

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

Origin of ultrametamorphism

OTHER WORDS FROM ultrametamorphism

ul·tra·met·a·mor·phic, adjective