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decay of organic matter

(Encyclopedia)decay of organic matter or putrefaction, process whereby heterotrophic organisms, including some bacteria, fungi, saprophytic plants, and lower animals, utilize the remains of once-living tissue as a ...

caustic

(Encyclopedia)caustic, any strongly corrosive chemical substance, especially one that attacks organic matter. A caustic alkali is a metal hydroxide, especially that of an alkali metal; caustic soda is sodium hydrox...

lanolin

(Encyclopedia)lanolin, greasy, yellow substance extracted from wool. When purified, it is used as a base for ointments and creams, as a lubricant, and in finishing and preserving leather. It is also a constituent o...

concentration

(Encyclopedia)concentration, in chemistry, measure of the relative proportions of two or more quantities in a mixture. The concentration of a solute is very important in studying chemical reactions because it deter...

Collins, Eddie

(Encyclopedia)Collins, Eddie (Edward Trowbridge Collins), 1887–1951, American baseball player, b. Millerton, N.Y., grad. Columbia, 1907. One of the game's great second basemen, he was active in the American Leagu...

Pyeongtaek

(Encyclopedia)Pyeongtaek or Pyongtaek, city (2016 pop. 470,832), Gyeonggi prov., NW South Korea, 45 mi (70 km) S of Seoul. In a rice, fruit, and dairy farming area, it is a port on the Yellow Sea and home to large ...

bile

(Encyclopedia)bile, bitter alkaline fluid of a yellow, brown, or green color, secreted, in man, by the liver. Bile, or gall, is composed of water, bile acids and their salts, bile pigments, cholesterol, fatty acids...

tallow

(Encyclopedia)tallow, solid fat extracted from the tissues and fatty deposits of animals, especially from suet (the fat of cattle and sheep). Pure tallow is white, odorless and tasteless; it consists chiefly of tri...

Borden, Sir Frederick William

(Encyclopedia)Borden, Sir Frederick William, 1847–1917, Canadian statesman, b. Cornwallis, N.S. He entered (1874) the Canadian House of Commons as a Liberal and served (1896–1911) as Wilfrid Laurier's minister ...

Abel, John Jacob

(Encyclopedia)Abel, John Jacob, 1857–1938, American pharmacologist, b. Cleveland, grad. Univ. of Michigan, 1883, M.D. Univ. of Strasbourg, 1888. Professor of pharmacology (1893–1932) and director of the laborat...