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De Quincey, Thomas

(Encyclopedia)De Quincey, Thomas də kwĭnˈsē [key], 1785–1859, English essayist. In 1802 he ran away from school and tramped about the country, eventually settling in London. His family soon found him and ente...

hydrazine

(Encyclopedia)hydrazine hīˈdrəzēnˌ [key], chemical compound, formula NH2NH2, m.p. 1.4℃, b.p. 113.5℃, specific gravity 1.011 at 15℃. It is very soluble in water and soluble in alcohol. At ordinary tempera...

anise

(Encyclopedia)anise ănˈĭs [key], annual plant (Pimpinella anisum) of the family Umbelliferae (parsley family), native to the Mediterranean region but long cultivated elsewhere for its aromatic and medicinal qual...

Gorno-Badakhshan

(Encyclopedia)Gorno-Badakhshan gôrˈnə-bädäkhshänˈ, –bədəkhshänˈ [key] or Badakhshan, Tajik Kuhistoni Badakhshon, autonomous province (1991 est. pop. 167,100), c.24,600 sq mi (63,710 sq km), roughly con...

gonorrhea

(Encyclopedia)gonorrhea gŏnərēˈə [key], common infectious disease caused by a bacterium (Neisseria gonorrhoeae), involving chiefly the mucous membranes of the genitourinary tract. It may occasionally spread to...

guardian and ward

(Encyclopedia)guardian and ward, in law. A guardian is someone who by appointment or by relationship has the care of a person or that person's property, or both. The protected individual, known as the ward, is cons...

food additives

(Encyclopedia)food additives, substances added to foods by manufacturers to prevent spoilage or to enhance appearance, taste, texture, or nutritive value. By quantity, the most common food additives are flavorings,...

Juárez

(Encyclopedia)Juárez, officially Heroica Ciudad Juárez, city (1990 pop. 789,522) Chihuahua state, N Mexico, on the Rio Grande opposite El Paso, Tex. Connected with the United States by three international bridges...

Monterrey

(Encyclopedia)Monterrey mōntārāˈ [key], city (1990 pop. 1,068,996), capital of Nuevo León state, NE Mexico, the third largest city of Mexico. Located c.150 mi (240 km) S of Laredo, Tex., in a valley surrounded...

attention deficit hyperactivity disorder

(Encyclopedia)attention deficit hyperactivity disorder (ADHD), formerly called hyperkinesis or minimal brain dysfunction, a chronic, neurologically based syndrome characterized by any or all of three types of behav...