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metasomatism

[met-uh-soh-muh-tiz-uh m] /ˌmɛt əˈsoʊ məˌtɪz əm/
noun, Geology
1.
the series of metamorphic processes whereby chemical changes occur in minerals or rocks as a result of the introduction of material, often in hot aqueous solutions, from external sources.
2.
replacement (def 4).
Origin of metasomatism
1885-1890
1885-90; meta- + somat- + -ism
Related forms
metasomatic
[met-uh-soh-mat-ik] /ˌmɛt ə soʊˈmæt ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for metasomatic

metasomatism

/ˌmɛtəˈsəʊməˌtɪzəm/
noun
1.
change in the composition of a rock or mineral by the addition or replacement of chemicals
Word Origin
C19: from New Latin; see meta-, somato-
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
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