leucocratic

[loo-kuh-krat-ik]

adjective Geology.

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

Origin of leucocratic

leuco- + -crat + -ic

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British Dictionary definitions for leucocratic

leucocratic

adjective

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

Word Origin for leucocratic

C20: from German leukokrat, from leuco- + Greek kratein to rule

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