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poikiloblastic

American  
[poi-kil-uh-blas-tik, poi-kuh-luh-] / pɔɪˌkɪl əˈblæs tɪk, ˌpɔɪ kə lə- /

adjective

Petrography.

  1. (of metamorphic rocks) having small grains of one mineral embedded in metacrysts of another mineral.

Etymology

Origin of poikiloblastic

1915–20; < Greek poikiló ( s ) various + -blastic

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.