leucocratic

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

adjective Geology.

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

Origin of leucocratic

British Dictionary definitions for leucocratic

leucocratic
/ (ˌluːkəˈkrætɪk) /

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