Found 2 items, similar to Magnesium.
English → English (WordNet) Definition: magnesium magnesium n : 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: Mg, atomic number 12]
English → English (gcide) Definition: Magnesium Magnesium \Mag*ne"si*um\, n. [NL. & F. See Magnesia.] (Chem.) A light silver-white metallic element of atomic number 12, malleable and ductile, quite permanent in dry air but tarnishing in moist air. It burns, forming (the oxide) magnesia, with the production of a blinding light (the so-called magnesium light) which is used in signaling, in pyrotechny, or in photography where a strong actinic illuminant is required. Its compounds occur abundantly, as in dolomite, talc, meerschaum, etc. Symbol Mg. Atomic weight, 24.305. Specific gravity, 1.75. [1913 Webster] Magnesium sulphate. (Chem.) Same as Epsom salts. [1913 Webster]