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leucocratic

American  
[loo-kuh-krat-ik] / ˌlu kəˈkræt ɪk /

adjective

Geology.

  1. (of a rock) composed mainly of light-colored minerals.

leucocratic British  
/ ˌluːkəˈkrætɪk /

adjective

  1. (of igneous rocks) light-coloured because of a low content of ferromagnesian minerals

"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

Etymology

Origin of leucocratic

leuco- + -crat + -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.