magnesium

An essential divalent cation. The major role is as the chelated ion in ATP and presumably other triphosphonucleotides. The Mg2+ /ATP complex is the sole biologically active form of ATP. The other essential role of Mg2+ is as the central ion of chlorophyll. Cellular concentration is less than 5mM, serum concentration approx.1mM.

magnesium

[n] - a light silver-white ductile bivalent metallic element
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Magnesium

Magnesium is a brilliant white metal, which is relatively soft. It is one of the more abundant elements, there being 23000 ppm in the earth`s crust. As a powder, magnesium is extremely reactive, but as a solid it oxidises slowly in air and reacts slowly in water. It does not occur naturally, but is found in combination with other elements in minera...
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Magnesium

A silvery metal used in some metal incendiaries. The dust is highly explosive. Ignition point of 650°F
Found on http://www.encyclo.co.uk/local/20747

Magnesium

Mineral, sometimes taken as a dietary supplement
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Magnesium

a mineral that is essential for many body functions, including nerve impulse transmission, formation of bones and teeth, and muscle contraction
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Magnesium

Magnesium: A mineral involved in many processes in the body including nerve signaling, the building of healthy bones, and normal muscle contraction. About 350 enzymes are known to depend on magnesium. Magnesium is contained in all unprocessed foods. High concentrations of magnesium are contained in nuts, unmilled grains, dark-green leafy vegetables...
Found on http://www.medterms.com/script/main/art.asp?articlekey=4243

Magnesium

Mag·ne'si·um noun [ New Latin & F. See Magnesia .] (Chemistry) 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 ...
Found on http://www.encyclo.co.uk/webster/M/6

magnesium

<chemical, element> An essential divalent cation. The major role is as the chelated ion in ATP and presumably other triphosphonucleotides. ... The magnesium ATP complex is the sole biologically active form of ATP. The other essential role of magnesium is as the central ion of chlorophyll. Cellular concentration is less than 5mM. Serum concent...
Found on http://www.encyclo.co.uk/local/20973

magnesium

Mg noun 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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magnesium

(Mg) (mag-ne´ze-әm) a chemical element, atomic number 12, atomic weight 24.312. Its salts are essential in nutrition, being required for the activity of many enzymes, especially those concerned with oxidative phosphorylation. It is found in the intra- and extracellular fluids and is excreted...
Found on http://www.encyclo.co.uk/local/21001

Magnesium

• (n.) 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. ...
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magnesium

chemical element, one of the alkaline-earth metals of main Group IIa of the periodic table, the lightest structural metal. Known originally through ... [17 related articles]
Found on http://www.britannica.com/eb/a-z/m/10

magnesium

(Mg) Magnesium burning A light, silvery-white, moderately hard, metallic element which in ribbon or powder form burns with a brilliant white flame. Magnesium is the second lightest member of the alkaline earth metals (after beryllium). It can be combined with aluminum...
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magnesium

magnesium (măgnē'zēum, –zhum) , metallic chemical element; symbol Mg; at. no. 12; at. wt. 24.305; m.p. about 648.8°C; b.p. about 1,090°C; sp. gr. 1.738 at 20°C; valence +2. In 1808, Sir Humphry Davy discovered magnesium in its oxide, although it is not certain...
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Magnesium

Magnesium is a metal element with the symbol Mg that burns with a very bright white light. Magnesium has an atomic weight of 24.36 and is usually prepared by the electrolysis of the fused chloride or of carnallite. It has a silver-white colour, a high metallic lustre, and low specific gravity. It is usually met with in the form of ribbon or powder....
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magnesium

(Mg) Type: Term Pronunciation: mag-nē′zē-ŭm Definitions: 1. An alkaline earth element, atomic no. 12, atomic wt. 24.3050, which oxidizes to magnesia; a bioelement, many salts have clinical applications.
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magnesium

Lightweight, very ductile and malleable, silver-white, metallic element, atomic number 12, relative atomic mass 24.305. It is one of the alkaline-earth metals, and the lightest of the commonly used metals. Magnesium silicate, carbonate, and chloride are widely distributed in nature. The metal is used in alloys, flares, and flash bulbs. It i...
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magnesium

In medicine, a mineral used by the body to help maintain muscles, nerves, and bones. It is also used in energy metabolism and protein synthesis.
Found on http://www.cancer.gov/dictionary?expand=M

Magnesium

Magnesium is a chemical element with the symbol Mg and atomic number 12. Its common oxidation number is +2. It is an alkaline earth metal and the eighth-most-abundant element in the Earth`s crust and ninth in the known universe as a whole. Magnesium is the fourth-most-common element in the Earth as a whole (behind iron, oxygen and silicon), makin....
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Magnesium

A lightweight, ductile metal similar to but lighter than aluminum.
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Magnesium

(Major Nutrient) Symptoms vary among plant species, but plant growth is rigid with leaves curling upward when there is magnesium deficiency.
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Magnesium

[pharmaceutical preparation] Magnesium, as a pharmaceutical preparation, is used to treat conditions including magnesium deficiency and hypomagnesemia, as well as eclampsia. Usually in lower dosages, magnesium is commonly included in dietary mineral preparations, including many multivitamin preparations. ==Types of preparations== In practic...
Found on http://en.wikipedia.org/wiki/Magnesium_(pharmaceutical_preparation)

magnesium

Silver-white light metal or element (Mg), which is involved as the eighth most abundant element about 1.4% in the structure of the earth's crust. Due to its reactivity, it is hardly solid, but mostly in the form of chemical compounds such as carbonates, chlorides, silicates and sulfates. In the form of the carbonate dolomite, it is even mountain-fo...
Found on https://glossary.wein-plus.eu/magnesium
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