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n. (Ca) silvery metallic element present in the earth as well as in most animals and plants
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Calcium ( ) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078 amu. Calcium is a soft gray alkaline earth metal, and is the fifth-most-abundant element by mass in the Earth's crust. Calcium is also the fifth-most-abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate.
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1. 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
(synonym) Ca, atomic number 20
(hypernym) metallic element, metal
(hyponym) calcium ion, factor IV
(substance-holonym) calcium oxide, quicklime, lime, calx, calcined lime, fluxing lime, unslaked lime, burnt lime
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n. calcium, silvery metallic element present in the earth as well as in most animals and plants, Ca
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