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methadone

(Encyclopedia)methadone mĕthˈədōnˌ, –dŏnˌ [key], synthetic narcotic similar in effect to morphine. Synthesized in Germany, it came into clinical use after World War II. It is sometimes used as an analgesic...

French Guiana

(Encyclopedia)CE5 French Guiana gēănˈə, –änˈ– [key], Fr. La Guyane française, officially Department of Guiana, French overseas department (2015 est. pop. 269,000), 35,135 sq mi (91,000 sq km), NE Sout...

friction

(Encyclopedia)friction, resistance offered to the movement of one body past another body with which it is in contact. In certain situations friction is desired. Without friction the wheels of a locomotive could not...

ignition

(Encyclopedia)CE5 Ignition system ignition, apparatus for igniting a combustible mixture. The German engineer Nikolaus A. Otto, in his first gas engine, used flame ignition; another method was heating a metal t...

diffusion

(Encyclopedia)diffusion, in chemistry, the spontaneous migration of substances from regions where their concentration is high to regions where their concentration is low. Diffusion is important in many life process...

conduction

(Encyclopedia)conduction, transfer of heat or electricity through a substance, resulting from a difference in temperature between different parts of the substance, in the case of heat, or from a difference in elect...

wages

(Encyclopedia)wages, payment received by an employee in exchange for labor. It may be in goods or services but is customarily in money. The term in a broad sense refers to what is received in any way for labor, but...

Macron, Emmanuel Jean-Michel Frédéric

(Encyclopedia)Macron, Emmanuel Jean-Michel Frédéric, 1977–, French political leader and banker, president of France (2017–), b. Amiens, grad. Univ. of Paris Nanterre (2001), Paris Institute of Political Studi...

mandrake

(Encyclopedia)mandrake, plant of the family Solanaceae (nightshade family), the source of a narcotic much used during the Middle Ages as a pain-killer and perhaps the subject of more superstition than any other pla...

Mantle, Mickey

(Encyclopedia)Mantle, Mickey (Mickey Charles Mantle), 1931–95, American baseball player, b. Spavinaw, Okla. In 1951, he joined the New York Yankees of the American League; eventually he replaced Joe DiMaggio in c...