metasomatism

noun meta·so·ma·tism \-ˈsō-mə-ˌti-zəm\

Definition of METASOMATISM

: metamorphism that involves changes in the chemical composition as well as in the texture of rock

— meta·so·mat·ic \-sō-ˈma-tik\ adjective

metasomatic from German metasomatisch, from Greek meta- + sōmat-, sōma body

First Known Use: 1886

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