PERICLASE


Meaning of PERICLASE in English

[ 'pɛrɪkleɪz , -s ]

■ noun a colourless mineral consisting of magnesium oxide, occurring chiefly in marble and limestone.

Origin

C19: from mod. L. periclasia , erroneously from Gk peri 'utterly' + klasis 'breaking' (because it cleaves perfectly).

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.