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[zen-uh-krist, zee-nuh-] /ˈzɛn ə krɪst, ˈzi nə-/
noun, Mineralogy.
a rock or crystal engulfed by magma and retained as an inclusion in the resulting igneous rock.
Origin of xenocryst
Related forms
xenocrystic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for xenocryst


a crystal included within an igneous rock as the magma cooled but not formed from it
Word Origin
C20: from xeno- + cryst(al)
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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xenocryst in Science
  (zěn'ə-krĭst', zē'nə-)   
A crystal foreign to the igneous rock in which it occurs. Xenocrysts usually form during metamorphism. Compare xenolith.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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