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marsh antelope

(Encyclopedia)marsh antelope, name for members of a group of deerlike African antelopes, usually found in reeds or tall grasses near water. The males of this group have horns that curve back, up, and forward; femal...

Knoxville

(Encyclopedia)Knoxville, city (1990 pop. 165,121), seat of Knox co., E Tenn., on the Tennessee River; inc. 1876. A port of entry, it is a trade and shipping center for a farm, bituminous-coal, and marble area. Its ...

goosefoot

(Encyclopedia)CE5 Lamb's-quarters Chenopodium album, a member of the goosefoot family goosefoot, common name for the genus Chenopodium, as well as for the goosefoot family, Chenopodiaceae, a family of widely di...

fractal geometry

(Encyclopedia)fractal geometry, branch of mathematics concerned with irregular patterns made of parts that are in some way similar to the whole, e.g., twigs and tree branches, a property called self-similarity or s...

instrument-landing system

(Encyclopedia)CE5 Instrument-landing system (ILS), the most common instrument-landing approach system, uses two beams to guide an airplane. instrument-landing system (ILS), ground-based radio system designed to...

Conestoga wagon

(Encyclopedia)Conestoga wagon kŏnˌəstōˈgə [key], heavy freight-carrying vehicle of distinctive type that originated in the Conestoga region of Pennsylvania c.1725. It was used by farmers to carry heavy loads ...

Oaxaca, city, Mexico

(Encyclopedia)Oaxaca, city (1990 pop. 212,818), capital of Oaxaca state, S Mexico. The city is officially called Oaxaca de Juárez. Situated in a valley encircled by low mountains, Oaxaca is a commercial and touris...

catastrophism

(Encyclopedia)catastrophism kətăsˈtrəfĭzəm [key], in geology, the doctrine that at intervals in the earth's history all living things have been destroyed by cataclysms (e.g., floods or earthquakes) and replac...

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...

Alps

(Encyclopedia)Alps, great mountain system of S central Europe, c.500 mi (800 km) long and c.100 mi (160 km) wide, curving in a great arc from the Riviera coast on the Mediterranean Sea, along the borders of N Italy...