(Encyclopedia) dislocation, displacement of a body part, usually a bone. When a bone is dislocated, the ends of opposing bones are usually forced out of connection with one another. In the process,…
(Encyclopedia) exchange-traded fund (ETF), in finance, an investment company that in exchange for the deposit of a portfolio of stocks, bonds, commodities, or other assets issues securities that…
(Encyclopedia) pollution allowance or emission rights, government-issued permit to emit a certain amount of a pollutant. The holder of the permit may use it to pollute legally, may trade permits, or…
(Encyclopedia) shock, any condition in which the circulatory system is unable to provide adequate circulation to the body tissues, also called circulatory failure or circulatory collapse. Shock…
(Encyclopedia) frostbite (chilblains), injury to the tissue caused by exposure to cold, usually affecting the extremities of the body, such as the hands, feet, ears, or nose. Extreme cold causes the…
(Encyclopedia) cyclosiscyclosissīklōˈsĭs [key], streaming of cytoplasm within a living cell without deformation of the external cell membrane. In some plant cells there is a rapid rotatory…
(Encyclopedia) biopsybiopsybīäpˈsē [key], examination of cells or tissues removed from a living organism. Excised material may be studied in order to diagnose disease or to confirm findings of…
Wives and Children of the Presidents
This table displays data about the spouses of U.S. Presidents, including the years of birth, death, and marriage, as well as the gender and number of children…
(Encyclopedia) Friedman, MiltonFriedman, Miltonfrēdˈmən [key], 1912–2006, American economist, b. New York City, Ph.D. Columbia, 1946. Friedman was influential in helping to revive the monetarist…
(Encyclopedia) Stephen BáthoryStephen Báthorybäˈtôrĭ [key], Pol. Stefan Batory, 1533–86, king of Poland (1575–86), prince of Transylvania (1571–75), son of Stephen Báthory (1477–1534). He was elected…
