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Cantabria

(Encyclopedia)Cantabria käntäˈbrēä [key], autonomous community and coextensive prov., 2,057 sq mi (5,328 sq ...

Central America

(Encyclopedia)Central America, narrow, southernmost region (c.202,200 sq mi/523,698 sq km) of North America, linked to South America at Colombia. It separates the Caribbean from the Pacific. Historically, geographe...

Banat

(Encyclopedia)Banat bäˈnät [key], region extending across W Romania, NE Serbia, and S Hungary. The term banat originally referred to any of several frontier provinces of Hungary and Croatia that were ruled by ba...

metamorphism

(Encyclopedia)metamorphism, in geology, process of change in the structure, texture, or composition of rocks caused by agents of heat, deforming pressure, shearing stress, hot, chemically active fluids, or a combin...

Hudson, river, United States

(Encyclopedia)Hudson, river, c.315 mi (510 km) long, rising in Lake Tear of the Clouds, on Mt. Marcy in the Adirondack Mts., NE N.Y., and flowing generally S to Upper New York Bay at New York City; the Mohawk River...

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 ...

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...

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...

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...