calcium

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cal·ci·um

 (kăl′sē-əm)
n. Symbol Ca
A silvery, moderately hard alkaline-earth metal that constitutes approximately 3.6 percent of the earth's crust and is a basic component of most animals and plants. It occurs naturally in limestone, gypsum, and fluorite, and its compounds are used to make plaster, quicklime, Portland cement, and metallurgic and electronic materials. Atomic number 20; atomic weight 40.08; melting point 842°C; boiling point 1,484°C; specific gravity 1.54; valence 2. See Periodic Table.

[Latin calx, calc-, lime; see calx + -ium.]

calcium

(ˈkælsɪəm)
n
(Elements & Compounds) a malleable silvery-white metallic element of the alkaline earth group; the fifth most abundant element in the earth's crust (3.6 per cent), occurring esp as forms of calcium carbonate. It is an essential constituent of bones and teeth and is used as a deoxidizer in steel. Symbol: Ca; atomic no: 20; atomic wt: 40.078; valency: 2; relative density: 1.55; melting pt: 842±2°C; boiling pt: 1494°C
[C19: from New Latin, from Latin calx lime]

cal•ci•um

(ˈkæl si əm)

n.
a silver-white divalent metal, combined in limestone, chalk, etc., occurring also in animals in bone, shell, etc. Symbol: Ca; at. wt.: 40.08; at. no.: 20; sp. gr.: 1.55 at 20°C.
[1808; < Latin calc-, s. of calx lime, limestone + New Latin -ium -ium2]

cal·ci·um

(kăl′sē-əm)
Symbol Ca A silvery-white, moderately hard metallic element that is an alkaline-earth metal and occurs in minerals such as limestone and gypsum. It is a basic component of leaves, bones, teeth, and shells, and is essential for the normal growth and development of most animals and plants. Calcium is used to make plaster, cement, and alloys. Atomic number 20. See Periodic Table.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.calcium - a white metallic element that burns with a brilliant lightcalcium - 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
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
fluor, fluorite, fluorspar - a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine
gypsum - a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)
burnt lime, calcined lime, calcium oxide, calx, fluxing lime, quicklime, unslaked lime, lime - a white crystalline oxide used in the production of calcium hydroxide
limestone - a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals
calcium ion, factor IV - ion of calcium; a factor in the clotting of blood
Translations
فِلِز الكِلْسكَالْسِيُوم
калций
vápník
calciumkalcium
kalcio
kaltsium
kalsium
kalcij
kalcium
kalsínkalsíum
カルシウム
칼슘
kalcis
kalcijs
calciu
vápnikvápník
kalcij
kalcium
แคลเซียม
canxi

calcium

[ˈkælsɪəm]
A. Ncalcio m
B. CPD calcium carbonate Ncarbonato m de calcio
calcium chloride Ncloruro m de calcio

calcium

[ˈkælsɪəm] ncalcium m

calcium

nKalzium nt, → Calcium nt

calcium

[ˈkælsɪəm] n (Chem) → calcio

calcium

(ˈkӕlsiəm) noun
an element of which one compound (calcium carbonate) forms limestone, chalk etc.

calcium

كَالْسِيُوم vápník calcium Kalzium ασβέστιο calcio kalsium calcium kalcij calcio カルシウム 칼슘 calcium kalsium wapń cálcio кальций kalcium แคลเซียม kalsiyum canxi

cal·ci·um

n. calcio, sustancia mineral necesaria en el desarrollo de los huesos y tejidos;
___ carbonatecarbonato cálcico.

calcium

n calcio; — carbonate carbonato cálcico or de calcio; — gluconate gluconato de calcio
References in periodicals archive ?
Calcium channels, selective gates in neuron walls, are integral in neuron firing, ensuring that all parts of the brain keep talking to one other.
1 inhibits neuronal calcium channels to reduce neuropathic pain.
5 also discussed the use of calcium to overcome competitive blockade of calcium channels in the cardiac conducting system.
Two of the four loci are related to voltage-gated transmembranal calcium channels, the authors noted.
Calcium channel blockers inhibit calcium ion flow through L-type calcium channels sensitive to voltage [8].
Aa Our new approach, watching calcium channels in action in living cells, allowed us to tease apart how they behave and how they're controlled and find a new module that could be targeted for drug design.
Whitehouse Station, NJ) will terminate the research collaboration and license agreement for novel compounds targeting N-type calcium channels for the treatment of pain and other disorders, which the companies entered into in March of 2006.
By blocking calcium channels in the muscle of the heart and blood vessels, calcium channel blockers prevent calcium levels from building up in stimulated cells, leading to less contraction, increased blood vessel dilation, and decreased peripheral resistance.
It suppresses pain by selectively blocking N-type calcium channels on nerves.
Further experiments with hamster cells bearing thermoTRPs revealed that pure allicin opens the calcium channels.
This transient increase in calcium, is mostly brought about by the activation of voltage gated calcium channels (VGCC) which result in a [Ca.

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