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tendril

(Encyclopedia)tendril, slender, sensitive structure of many climbing plants that by a response to contact (see auxin) supports the plant. Tendrils are modified stems, leaves, or leaf parts or roots. Most young tend...

Cali

(Encyclopedia)Cali käˈlē [key], city, capital of Valle del Cauca dept., W Colombia, on the Cali River. I...

Callejas Romero, Rafael Leonardo

(Encyclopedia)Callejas Romero, Rafael Leonardo, 1943–2020, Honduran political leader, president of Honduras (1990–94). A member of the conservative National party, he served in various government and party posi...

Camden, city, United States

(Encyclopedia)Camden, city (2020 pop. 71,791), seat of Camden co., W N.J., a port on the Delaware River opposite Philadelphia, settled 1681, inc. 1828. The opening of...

Bettendorf

(Encyclopedia)Bettendorf bĕtˈəndocirc;rfˌ [key], city (2020 pop. 39,102), Scott co., E Iowa, on the Mississippi ...

birth control

(Encyclopedia)birth control, practice of contraception for the purpose of limiting reproduction. Although contraceptive techniques had been known in ancient Egypt, Greece, and Rome, the modern movement for birth ...

Greenspan, Alan

(Encyclopedia)Greenspan, Alan, 1926–, American economist, chairman of the Federal Reserve Board (1987–2006), b. New York City. Influenced by the philosophy of Ayn Rand, Greenspan is a strong supporter of the fr...

new towns

(Encyclopedia)new towns, planned urban communities in Great Britain, developed by long-term loans from the central government and first authorized by the New Towns Act of 1946. The chief purpose of the act was to r...

hypertension

(Encyclopedia)hypertension or high blood pressure, elevated blood pressure resulting from an increase in the amount of blood pumped by the heart or from increased resistance to the flow of blood through the small a...

La Plata

(Encyclopedia)La Plata lä pläˈtä [key], city (1991 pop. 640,344), capital of Buenos Aires prov., E central Argentina, 5 mi (8.1 km) inland from Ensenada, its port on the Río de la Plata. La Plata's chief funct...