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metamorphic

[ met-uh-mawr-fik ]

adjective

  1. pertaining to or characterized by change of form, or metamorphosis.
  2. Geology. pertaining to or exhibiting structural change or metamorphism.


metamorphic

/ ˌmɛtəˈmɔːfɪk /

adjective

  1. relating to or resulting from metamorphosis or metamorphism
  2. (of rocks) altered considerably from their original structure and mineralogy by pressure and heat Compare igneous sedimentary
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

metamorphic

/ mĕt′ə-môrfĭk /

  1. Zoology.
    Relating to metamorphosis.
  2. Geology.
    Relating to rocks that have undergone metamorphism. Metamorphic rocks are formed when igneous, sedimentary, or other metamorphic rocks undergo a physical change due to extreme heat and pressure. These changes often produce folded layers or banding in the rocks, and they can also cause pockets of precious minerals to form. The folds and banding can be produced by incomplete segregation of minerals during recrystallization, or they can be inherited from preexisting beds in sedimentary rocks or preexisting layers in igneous rocks. The precious minerals can form as the result of recrystallization when the rocks undergoing metamorphism are subjected to changes in pressure and temperature.
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Other Words From

  • nonmet·a·morphic adjective
  • premet·a·morphic adjective
  • unmet·a·morphic adjective
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Word History and Origins

Origin of metamorphic1

First recorded in 1810–20; meta- + -morphic
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Example Sentences

One thing about the PVP that delights Coffey is that it is composed of all three kinds of rock — sedimentary, metamorphic and igneous.

A team co-led by Southwest Research Institute found evidence for hydrothermal or metamorphic activity within the icy dwarf planets Eris and Makemake, located in the Kuiper Belt.

It’s a metamorphic rock, which means it becomes something new under extreme heat and pressure without melting.

I waited for him in silence each time, studying the metamorphic marvel we were walking on.

A lot of bodies that are depicted but not in a traditional way, but rather distorted, expanded in a metamorphic phase.

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metamictmetamorphic facies