Magnesium Definition

măg-nēzē-əm, -zhəm
noun
A lightweight, silver-white, malleable and ductile, metallic chemical element, one of the alkaline-earth metals, used in making several alloys and, because it burns with a hot, white light, in photographic flashbulbs, incendiary bombs, etc.: symbol, Mg; at. no. 12
Webster's New World
The definition of magnesium is one of the most abundant elements on the face of the Earth.
YourDictionary
Magnesium's atomic symbol is Mg and it is the eighth-most plentiful element in the Earth's crust.
YourDictionary
Its ions are essential in all living things and it is the second-most plentiful ion in seawater.
YourDictionary
It is never found naturally in its elemental form on Earth because of its reactivity. It is always found combined with other minerals.
YourDictionary
Synonyms:
  • atomic number 12
  • mg
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Origin of Magnesium

  • From New Latin magnÄ“sium, from MagnÄ“sia (“region in Thessaly") +"Ž -ium.

    From Wiktionary

  • From magnesia

    From American Heritage Dictionary of the English Language, 5th Edition

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