periclase

Definitions

  • WordNet 3.6
    • n periclase a white solid mineral that occurs naturally as periclase; a source of magnesium
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Webster's Revised Unabridged Dictionary
    • n Periclase (Min) A grayish or dark green mineral, consisting essentially of magnesia (magnesium oxide), occurring in granular forms or in isometric crystals.
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Century Dictionary and Cyclopedia
    • n periclase A rare mineral consisting of magnesia (MgO) with a little iron protoxid. It occurs in minute greenish octahedrons embedded in ejected masses of crystalline limestone at Vesuvius, and has also been found recently in Sweden.
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Chambers's Twentieth Century Dictionary
    • n Periclase per′i-klāz a rare mineral consisting of magnesia with a little iron protoxide.
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Etymology

Webster's Revised Unabridged Dictionary
Pref. peri-, + Gr. to break
Chambers's Twentieth Century Dictionary
Gr. peri, about, klasis, fracture.

Usage


In news:

RHI AG recently announced it has signed a contract to acquire Premier Periclase Ltd of Ireland for €21 million (~ $27 million) PPL is a worldwide supplier of seawater-based large crystal sinter.
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