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calcium hydroxide a soft white crystalline compound made by the action of water on calcium oxide and used in the manufacture of cement, plaster, hard rubber products, and bleaching powder; slaked lime.
calcium oxide a soft white caustic powder used in the treatment of waste, as an industrial alkali, and in the manufacture of steel, glass, plaster, and insecticides; lime; quicklime.
calcium phosphate any of a number of phosphates of calcium found in some rocks and in animal bones, used in baking powder and plant food, and in the manufacture of enamels, plastics, and cleaning agents.
calcspar see calcite.
calculable able to be determined by a process of calculation.
calculate to compute mathematically. [6 definitions]
calculated done or made after carefully estimating the likely result. [2 definitions]
calculating able to make calculations. [3 definitions]
calculation the act, process, or result of calculating or making computations. [4 definitions]
calculator a machine used in calculating or computing numbers. [2 definitions]
calculous caused by or having a stony concretion or calculus.
calculus in mathematics, a system of calculation, as of rates of change, lengths, or volumes, involving algebraic notations. [2 definitions]
Calcutta a state capital on the eastern coast of India.
caldera a large volcanic crater, esp. one whose diameter greatly exceeds that of the vent within it.
caldron variant of cauldron.
calèche variant of calash.
Caledonia a literary name for Scotland.
calendar a chart of the days, weeks, and months of one or more years. [4 definitions]
calendar year the period of time that begins on January 1 and ends on December 31. (Cf. fiscal year.)
calender a machine in which paper or cloth is pressed between rollers to make it smooth or glossy. [2 definitions]
calends (usu. used with a pl. verb) in the ancient Roman calendar, the first day of any month.