| calcite |
a common, soft mineral that occurs in chalk, marble, and limestone and is composed of calcium carbonate. |
| calcitonin |
a polypeptide hormone secreted by the thyroid that lowers blood calcium. |
| calcium |
a chemical element of the alkaline-earth group that has twenty protons in each nucleus and occurs widely in nature, but only in compounds such as calcite or limestone. (symbol: Ca) [2 definitions] |
| calcium carbide |
a dark gray crystalline compound used as a dehydrating agent and a source of acetylene gas and calcium cyanimide. |
| calcium carbonate |
a white crystalline compound found in chalk, limestone, marble, shells, and plant ash that is used in the manufacture of cement, paints, plastics, and polishing agents such as toothpaste. |
| calcium chloride |
a white crystalline compound, derived from calcium carbonate, that is used as a dehydrating agent, de-icer, and dust suppressant. |
| calcium cyanamide |
a white powder used mainly as a fertilizer or weed killer; cyanamide. |
| calcium fluoride |
a white powder used in cements and other industrial products and as a tooth decay preventive. |
| 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. |