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herbal

(Encyclopedia)herbal, early botanical book containing descriptions and illustrations of herbs and plants with their properties, chiefly those qualities that made them useful as medicines or condiments. Most of the ...

trachoma

(Encyclopedia)trachoma trəkōˈmə [key], infection of the mucous membrane of the eyelids caused by the bacterium Chlamydia trachomatis. Trachoma affects at least 86 million people worldwide. An estimated 1.9 mill...

Sanger, Margaret Higgins

(Encyclopedia)Sanger, Margaret Higgins, 1879–1966, American leader in the birth control movement, b. Corning, N.Y. Personal experience and work as a public-health nurse, much of it on New York City's Lower East S...

Anzhero-Sudzhensk

(Encyclopedia)Anzhero-Sudzhensk ənzhĕˌrə–so͞oˈjĕnsk [key], city (1989 pop. 108,000), SW Siberian Russia, on the Trans-Siberian RR. One of the oldest and largest coal-mining centers of the Kuznetsk Basin, t...

Béliveau, Jean Arthur

(Encyclopedia)Béliveau, Jean Arthur, 1931–2014, Canadian ice hockey player, b. Trois-Rivières, Québec. He joined the Montreal Canadiens of the National Hockey League in 1953, playing for 18 seasons and becomin...

cholera

(Encyclopedia)cholera kŏlˈərə [key] or Asiatic cholera, acute infectious disease caused by strains of the bacterium Vibrio cholerae that have been infected by bacteriophages. The bacteria, which are found in fe...

sciatica

(Encyclopedia)sciatica sīătˈĭkə [key], severe pain in the leg along the sciatic nerve and its branches. It may be caused by injury or pressure to the base of the nerve in the lower back, or by metabolic, toxic...

vitamin

(Encyclopedia)vitamin, group of organic substances that are required in the diet of humans and animals for normal growth, maintenance of life, and normal reproduction. Vitamins act as catalysts; very often either t...

leafhopper

(Encyclopedia)leafhopper, common name for small, wedge-shaped leaping insects, cosmopolitan in distribution, belonging to the family Cicadellidae, which comprises some 5,500 species of insects. Some are brightly co...

American University in Cairo

(Encyclopedia)American University in Cairo, at Cairo, Egypt; English language; founded 1919. It has faculties of anthropology, computer science, economics and political science, engineering, English and comparative...