calcium

[n] - a white metallic element that burns with a brilliant light
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Calcium

A mineral found in bones and teeth. It is also needed in many processes that take place within the body, such as muscle contraction.
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Calcium

Calcium is a silvery white metal which is obtained by the electrolysis of molten calcium chloride. Calcium compounds have many applications; for example, calcium chloride is used extensively to dry gases as it is capable of absorbing moisture from the atmosphere. Calcium oxide (lime), produced by heating limestone, has many applications including t...
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Calcium

CAS Number: 7440-70-2. A silver-white bivalent metallic element of the alkaline-earth group occurring only in combination. Chemical symbol = Ca. Molecular weight = 40.078 g/mol.
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Calcium

A substance which is essential to life. Calcium salts are needed for healthy bones and teeth. A small amount of calcium is found in the blood. If this level is too high (hypercalcaemia) or too low (hypocalcaemia) this can be dangerous. Levels of calcium can be measured with a blood test.
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Calcium

Mineral needed for making bones, and in blood
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Calcium

a plentiful mineral in the body and the basic component of teeth and bones; essential for cell function, muscle contraction, transmission of nerve impulses, and blood clotting
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Calcium

A metallic substance present in bones and teeth.
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Calcium

Calcium: A mineral found mainly in the hard part of bones, where it is stored. Calcium is added to bones by cells called osteoblasts and is removed from bones by cells called osteoclasts. Calcium is essential for healthy bones. It is also important for muscle contraction, heart action, nervous system maintenance, and normal blood clotting. Food sou...
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Calcium

Cal'ci·um (kăl'sĭ*ŭm) noun [ New Latin , from Latin calx , calcis , lime; cf French calcium . See Calx .] (Chemistry) An elementary substance; a metal which combined with oxygen forms lime. It is of a pale yellow color, tenacious, and malleable. It...
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calcium

<element> An element taken in through the diet that is essential for a variety of bodily functions, such as neurotransmission, muscle contraction and proper heart function. Imbalances of calcium can lead to many health problems and excess calcium in nerve cells can cause their death. ... (22 May 1997) ...
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calcium

Ca noun a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth`s crust; an important component of most plants and animals
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calcium

(Ca) (kal´se-әm) a chemical element, atomic number 20, atomic weight 40.08. It is the most abundant mineral in the body; in combination with phosphorus it forms calcium phosphate, the dense, hard material of bones and teeth. It is an important cation in intracellular and extracellular fluid ...
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Calcium

• (n.) An elementary substance; a metal which combined with oxygen forms lime. It is of a pale yellow color, tenacious, and malleable. It is a member of the alkaline earth group of elements. Atomic weight 40. Symbol Ca.
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calcium

chemical element, one of the alkaline-earth metals of main Group IIa of the periodic table. It is the most abundant metallic element in the human ... [47 related articles]
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calcium

(Ca) Type: Term Pronunciation: kal′sē-ŭm, -sē-ī Definitions: 1. A metallic bivalent element; atomic no. 20, atomic wt. 40.078, density 1.55, melting point 842°C. The oxide of calcium is an alkaline earth, CaO, quicklime, which on the addition of water becomes calcium hydrate, Ca(OH)2, slaked lime. Fo...
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Calcium

An element taken in through the diet that is essential for a variety of bodily functions, such as the transmission of nerve impulses, muscle contraction and proper heart function. Imbalances of calcium can lead to many health problems and can cause nerve cell death.
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Calcium

A necessary element used by salt water corals and other organisms for their calcium carbonate skeleton or shell.
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calcium

(Ca) A soft, gray, metallic element that tarnishes rapidly on exposure to air. Calcium is one of the alkaline earth metals. It occurs commonly on Earth (see elements, terrestrial abundance), in various forms of its carbonate (CaCO3), e.g., chalk, lime...
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Calcium

A mineral that is essential for healthy bones and teeth. A developing fetus needs calcium to grow strong bones and teeth, a healthy heart, nerves, and muscles. Mothers that do not consume enough calcium during pregnancy may have sore bones and teeth because the fetus will take what it needs from the mother's supply. The recommeded amount of calc......
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calcium

calcium (kăl'sēum) [Lat.,=lime], metallic chemical element; symbol Ca; at. no. 20; at. wt. 40.08; m.p. about 839°C; b.p. 1,484°C; sp. gr. 1.55 at 20°C; valence +2. Calcium is a malleable, ductile, silver-white, relatively soft metal with face-centered, cubic crystalline s...
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Calcium

Calcium is a lustrous silver-white brittle alkaline metal element with the symbol Ca. Its oxide occurs widely in nature as lime. It is a member of the alkaline earth group of elements.
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calcium

Soft, silvery-white metallic element, atomic number 20, relative atomic mass 40.08. It is one of the alkaline-earth metals. It is the fifth most abundant element (the third most abundant metal) in the Earth's crust. It is found mainly as its carbonate CaCO3, which occurs in a fairly pure condition as chalk and lim...
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Calcium

In dentistry calcium is the chemical element that is needed for healthy teeth bones and nerves. Calcium chemical symbol Ca plays a very important role in building healthy teeth and bones as well as in our nervous system because it is required for normal communication between nerve cells. It ensures that our muscles contract and that our hearts beat...
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calcium

A mineral needed for healthy teeth, bones, and other body tissues. It is the most common mineral in the body. A deposit of calcium in body tissues, such as breast tissue, may be a sign of disease.
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