SLATE n. 11 definitions
ess. -- Slate ax or axe, a mattock with an ax end, used in shaping slates for roofs, and making holes in them for the nails. -- Slate clay (Geol.), an indurated clay, forming one of the alternating beds of the coal measures, consisting of an infusible compound of alumina and silica, and often used for making fire bri…
SODA n. 2 definitions
-- Soda lye, a lye consisting essentially of a solution of sodium hydroxide, used in soap making. -- Soda niter. See Nitratine. -- Soda salts, salts having sodium for the base; specifically, sodium sulphate or Glauber's salts. -- Soda waste, the waste material, consisting chiefly of calcium hydroxide and sulphide, w…
SODIUM n.
many plants, and produced artifically in large quantities from common salt. It is used in making soap, glass, paper, etc., and as alkaline agent in many chemical industries. Called also sal soda, washing soda, or soda. Cf. Sodium bicarbonate, above and Trona. Sodium chloride, common, or table, salt, NaCl. -- Sodium hy…
SPECULUM n. 4 definitions
iant in the adult male than in the female. Speculum metal, a hard, brittle alloy used for making the reflectors of telescopes and other instruments, usually consisting of copper and tin in various proportions, one of the best being that in which there are 126.4 parts of copper to 58.9 parts of tin, with sometimes a sma…