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poikilitic

American  
[poi-kuh-lit-ik] / ˌpɔɪ kəˈlɪt ɪk /

adjective

Petrography.

  1. (of igneous rocks) having small crystals of one mineral scattered irregularly in larger crystals of another mineral.

Etymology

Origin of poikilitic

1830–40; < Greek poikíl ( os ) various + -ite 1 + -ic

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.