periclase

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

noun

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

Nearby words

  1. pericholangitis,
  2. perichondral bone,
  3. perichondritis,
  4. perichondrium,
  5. perichrome,
  6. periclean,
  7. pericles,
  8. periclinal,
  9. pericline,
  10. pericolitis

Origin of periclase

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for periclase

periclase

/ (ˈpɛrɪˌkleɪs) /

noun

a mineral consisting of magnesium oxide in the form of isometric crystals or grains: occurs in metamorphosed limestone
Derived Formspericlastic (ˌpɛrɪˈklæstɪk), adjective

Word Origin for periclase

C19: from New Latin periclasia, from Greek peri very + klasis a breaking, referring to its perfect cleavage

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