Search Result for "periclase": 
Wordnet 3.0

NOUN (1)

1. a white solid mineral that occurs naturally as periclase; a source of magnesium;
[syn: periclase, magnesia, magnesium oxide]


The Collaborative International Dictionary of English v.0.48:

Periclase \Per"i*clase\, Periclasite \Per`i*cla"site\, n. [Pref. peri- + Gr. ? to break.] (Min.) A grayish or dark green mineral, consisting essentially of magnesia (magnesium oxide), occurring in granular forms or in isometric crystals. [1913 Webster]
WordNet (r) 3.0 (2006):

periclase n 1: a white solid mineral that occurs naturally as periclase; a source of magnesium [syn: periclase, magnesia, magnesium oxide]