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migmatite

British  
/ ˈmɪɡməˌtaɪt /

noun

  1. a composite rock body containing two types of rock (esp igneous and metamorphic rock) that have interacted with each other but are nevertheless still distinguishable

"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
migmatite Scientific  
/ mĭg′mə-tīt′ /

  1. A rock of both metamorphic and igneous origin, that exhibits characteristics of both rock types. Migmatites probably form through the heating (but not melting) of rocks in the presence of abundant fluids.

Etymology

Origin of migmatite

C20: alteration of Swedish migmatit, from Greek migma mixture + -ite 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The rock sequence is sedimentary rock, slate, phyllite, schist, gneiss, migmatite, and granite.

From Textbooks • Jan. 1, 2017

This magma becomes a hybrid metamorphic-igneous rock called migmatite.

From Textbooks • Jan. 1, 2017

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.