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Calcium   /kˈælsiəm/   Listen
noun
Calcium  n.  (Chem.) 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. Note: Calcium is widely and abundantly disseminated, as in its compounds calcium carbonate or limestone, calcium sulphate or gypsum, calcium fluoride or fluor spar, calcium phosphate or apatite.
Calcium light, an intense light produced by the incandescence of a stick or ball of lime in the flame of a combination of oxygen and hydrogen gases, or of oxygen and coal gas; called also Drummond light and lime light.






Collaborative International Dictionary of English 0.48








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"Calcium" Quotes from Famous Books



... lantern; then comes the magnesium light; but their use is a little troublesome and rather expensive; next to these in illuminating power is the oxy-hydrogen or Drummond light. The preparation of the gases and the use of the calcium ...
— Scientific American, Vol.22, No. 1, January 1, 1870 • Various

... forms of stored power which are now in sight above the horizon of the industrial outlook are the electric storage battery, compressed air, and calcium-carbide. The first of these has come largely into use owing to the demand for a regulated and stored supply of electricity available for lighting purposes. Indeed the storage battery has practically rendered safe the ...
— Twentieth Century Inventions - A Forecast • George Sutherland

... policemen begin to shoot, somebody is going to get hurt. The man from Pompton, N.J., who always wears an overcoat in July, had turned up in a Broadway hotel drinking hot Scotches and enjoying his annual ray from the calcium. Philanthropists were petitioning the Legislature to pass a bill requiring builders to make tenement fire-escapes more commodious, so that families might die all together of the heat instead of one or two at a time. So many ...
— The Trimmed Lamp • O. Henry

... those compounds are much more readily available in space, where it is not necessary to fight the gravitational pull of a planet to get them. The stony asteroids average thirty-six per cent oxygen by mass; the rest of it is silicon, magnesium, aluminum, nickel, and calcium, with respectable traces of sodium, chromium, phosphorous manganese, cobalt, potassium, and titanium. The metallic nickel-iron asteroids made an excellent source of export products to ship to Earth, but the stony ...
— Thin Edge • Gordon Randall Garrett

... light. For one moment it circled and wavered restlessly about, feeling like a great finger along the gray surface of the water. Then it smote full on Blake and the deck where he stood, blinding him with its glare, picking out every object and every listening figure as plainly as a calcium picks out a ...
— Never-Fail Blake • Arthur Stringer


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