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.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

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.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

calcium

[ˈkælsɪəm] ncalcium m
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

calcium

nKalzium nt, → Calcium nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

calcium

[ˈkælsɪəm] n (Chem) → calcio
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

calcium

(ˈkӕlsiəm) noun
an element of which one compound (calcium carbonate) forms limestone, chalk etc.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

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
Multilingual Translator © HarperCollins Publishers 2009

cal·ci·um

n. calcio, sustancia mineral necesaria en el desarrollo de los huesos y tejidos;
___ carbonatecarbonato cálcico.
English-Spanish Medical Dictionary © Farlex 2012

calcium

n calcio; — carbonate carbonato cálcico or de calcio; — gluconate gluconato de calcio
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
This transaction adds worldwide rights to Cavion's CX-8998, a modulator of T-type calcium channels, for treating essential tremor, represents attractive opportunity for Jazz to broaden its sleep and neuroscience pipeline as well as movement disorders.
L-type voltage-sensitive calcium channels (LVSCC) plays important roles in neuro-excitability and neurotransmission, thus in neural plasticity, learning, and memory.
Furthermore, the research group screened an existing drug library as an indicator of susceptibility to stress observed in dopaminergic neurons derived from Parkinson's disease patients, and identified compounds that inhibit calcium channels. Further detailed analysis conducted by the research group revealed higher expression of T-type calcium channels in dopaminergic neurons derived from PARK2 patients.
Calcium channels also mediate multiple cellular effects including fusion of neurotransmitter containing vesicles with the presynaptic terminal membrane and allowing release of neurotransmitter.
Researchers at Karolinska Institute have discovered that one of the building blocks in the calcium channels in the pancreatic beta cells play an important role in regulating our blood glucose values.
In a recent study, (3) calcium channel blockers, which block voltage-gated calcium channels, also blocked the increased influx of calcium caused by EMFs.
In the study, a dose of alcohol given to the nondependent rats engaged proteins called calcium channels and increased neuronal activity.
[8] The anti-sympathetic action of cilnidipine has been demonstrated in several experimental studies and is thought to be due to blockade of N-type calcium channels. [19] Studies have shown that Cilnidipine, a L/N-type calcium channel blocker not only blocks reflex sympathetic stimulation but also reduces proteinuria, thus providing additional renal and cardiovascular protection.
Calcium channels, selective gates in neuron walls, are integral in neuron firing, ensuring that all parts of the brain keep talking to one other.
Although there are many types of synaptic plasticity, this review is limited to homosynaptic plasticity that depends on postsynaptic voltage-gated calcium channels (VGCCs) and NMDA receptors (NMDARs).

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