Meaning of MAGNESIUM
| Pronunciation: | | mag'neezeeum
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 WordNet Dictionary |
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| | Definition: | | [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) |
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| | Synonyms: | | atomic number 12, Mg |
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| | See Also: | | carnallite, dolomite, magnesia, magnesite, magnesium oxide, metal, metallic element, olivine, periclase, spinel | |
| Webster's 1913 Dictionary |
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| | Definition: | | \Mag*ne"si*um\, n. [NL. & F. See {Magnesia}.] (Chem.)
A light silver-white metallic element, 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, 24.4. Specific gravity, 1.75.
{Magnesium sulphate}. (Chem.) Same as {Epsom salts}.
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