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Từ điển WordNet v3.1 - WordNet Dictionary
atomic number 12
a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine) • Syn: magnesium, Mg • Hypernyms: metallic element, metal • Substance Holonyms: carnallite, dolomite, bitter spar, magnesite, olivine, periclase, magnesia, magnesium oxide, spinel
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