metamorphism

[ met-uh-mawr-fiz-uhm ]

/ ˌmɛt əˈmɔr fɪz əm /

noun

Geology. a change in the structure or constitution of a rock due to natural agencies, as pressure and heat, especially when the rock becomes harder and more completely crystalline.

Archaic. metamorphosis.

Origin of metamorphism

First recorded in 1835–45; meta- + -morphism

Words nearby metamorphism

metamerism, metamict, metamorphic, metamorphic facies, metamorphic rock, metamorphism, metamorphopsia, metamorphose, Metamorphoses, metamorphosis, metamorphous

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for metamorphism

The Weverton sandstone has suffered less from metamorphism than any of the sediments.
History and Comprehensive Description of Loudoun County, Virginia|James W. Head
The metamorphic rocks are associated with bands of epidiorite which have shared in the folding and metamorphism of the region.
Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 5|Various
The birthplace of a large variety of ores and minerals is in the zone of metamorphism.
North America|Israel C. Russell
Whether the rocks below the zone of metamorphism are fused or not depends on pressure.
North America|Israel C. Russell

To the student of metamorphism the geology of this area is of very high interest.
The Sunny Side of Ireland|John O'Mahony and R. Lloyd Praeger

British Dictionary definitions for metamorphism

metamorphism

/ (ˌmɛtəˈmɔːfɪzəm) /

noun

the process by which metamorphic rocks are formed

a variant of metamorphosis

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

Scientific definitions for metamorphism

metamorphism

[ mĕt′ə-môr′fĭz′əm ]

The process by which rocks are changed in composition, texture, or structure by extreme heat and pressure.♦ In prograde metamorphism metamorphic rocks that were formed under low pressure and temperature conditions undergo a second metamorphic event in which they are exposed to higher pressures and temperatures.♦ In retrograde metamorphism metamorphic rocks that were formed under high pressure and temperature conditions undergo a second metamorphic event in which they are exposed to lower pressures and temperatures. See more at contact metamorphism regional metamorphism.

单词	metamorphism
释义	metamorphism [ met-uh-mawr-fiz-uhm ] / ˌmɛt əˈmɔr fɪz əm / noun Geology. a change in the structure or constitution of a rock due to natural agencies, as pressure and heat, especially when the rock becomes harder and more completely crystalline. Archaic. metamorphosis. Origin of metamorphism First recorded in 1835–45; meta- + -morphism Words nearby metamorphism metamerism, metamict, metamorphic, metamorphic facies, metamorphic rock, metamorphism, metamorphopsia, metamorphose, Metamorphoses, metamorphosis, metamorphous Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for metamorphism The Weverton sandstone has suffered less from metamorphism than any of the sediments. History and Comprehensive Description of Loudoun County, Virginia\|James W. Head The metamorphic rocks are associated with bands of epidiorite which have shared in the folding and metamorphism of the region. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 5\|Various The birthplace of a large variety of ores and minerals is in the zone of metamorphism. North America\|Israel C. Russell Whether the rocks below the zone of metamorphism are fused or not depends on pressure. North America\|Israel C. Russell To the student of metamorphism the geology of this area is of very high interest. The Sunny Side of Ireland\|John O'Mahony and R. Lloyd Praeger British Dictionary definitions for metamorphism metamorphism / (ˌmɛtəˈmɔːfɪzəm) / noun the process by which metamorphic rocks are formed a variant of metamorphosis 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 Scientific definitions for metamorphism metamorphism [ mĕt′ə-môr′fĭz′əm ] The process by which rocks are changed in composition, texture, or structure by extreme heat and pressure.♦ In prograde metamorphism metamorphic rocks that were formed under low pressure and temperature conditions undergo a second metamorphic event in which they are exposed to higher pressures and temperatures.♦ In retrograde metamorphism metamorphic rocks that were formed under high pressure and temperature conditions undergo a second metamorphic event in which they are exposed to lower pressures and temperatures. See more at contact metamorphism regional metamorphism. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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