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laxative

(Encyclopedia)laxative, drug or other substance used to stimulate the action of the intestines in eliminating waste from the body. The term laxative usually refers to a mild-acting substance; substances of increasi...

acne

(Encyclopedia)acne, common inflammatory disease of the hair follicles and sebaceous glands characterized by blackheads, whiteheads, pustules, nodules and, in the more severe forms, by cysts and scarring. The lesion...

Burroughs, William Seward

(Encyclopedia)Burroughs, William Seward, 1914–97, American novelist, b. St. Louis, grad. Harvard, 1936, moved to New York City, 1943. He was an elder member of the beat generation. Junkie (1953), originally publi...

Calderón Hinojosa, Felipe de Jesús

(Encyclopedia)Calderón Hinojosa, Felipe de Jesús fālēˈpā dā hāso͞osˈ käldārōnˈ ēˌnōhōˈsä [key], 1962–, Mexican politician, president of Mexico (2006–2012). His father, Luis Calderón Vega, h...

Botero, Fernando

(Encyclopedia)Botero, Fernando, 1932–, Colombian figurative painter and sculptor, b. Medellín, one of the most celebrated contemporary Latin American artists. He attended his native city's university (grad. 1950...

Tamaulipas

(Encyclopedia)Tamaulipas tämoulēˈpäs [key], state (1990 pop. 2,249,581), 30,734 sq mi (79,601 sq km), NE Mexico, on the Gulf of Mexico. Ciudad Victoria is the capital. The central and western parts of the state...

behaviorism

(Encyclopedia)behaviorism, school of psychology which seeks to explain animal and human behavior entirely in terms of observable and measurable responses to environmental stimuli. Behaviorism was introduced (1913) ...

schistosomiasis

(Encyclopedia)schistosomiasis bĭlˌhärzīˈəsĭs [key], or snail fever, parasitic disease caused by blood flukes, trematode worms of the genus Schistosoma. Three species are human parasites: S. mansoni, S. japon...

sage

(Encyclopedia)sage, any species of the large genus Salvia, aromatic herbs or shrubs of the family Labiatae (mint family). The common sage of herb gardens is S. officinalis, a strongly scented shrubby perennial, nat...

catecholamine

(Encyclopedia)catecholamine kătˌəkôlˈəmēn [key], any of several compounds occurring naturally in the body that serve as hormones or as neurotransmitters in the sympathetic nervous system. The catecholamines ...