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periclase

American

[per-i-kleys, -kleyz] / ˈpɛr ɪˌkleɪs, -ˌkleɪz /

noun

a cubic mineral, native magnesia, MgO, occurring usually in metamorphosed dolomite.

periclase British

/ ˈpɛrɪˌkleɪs, ˌpɛrɪˈklæstɪk /

noun

a mineral consisting of magnesium oxide in the form of isometric crystals or grains: occurs in metamorphosed limestone

"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

Other Word Forms

Derived Forms

periclastic

adjective

Etymology

Origin of periclase

1835–45; < German Periklas < New Latin periclasia, equivalent to peri- peri- + Greek klás ( is ) a breaking ( cf. -clase) + -ia -ia

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023