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Priapulida

(Encyclopedia) Priapulida, phylum consisting of 17 species of predatory, unsegmented marine worms that live in the sand and mud at the sea bottom. The largest are 4 to 6 in. (10–17 cm) long, but the…

Landes, region, France

(Encyclopedia) LandesLandesläNd [key], region, SW France. It is a vast, flat, nearly triangular tract of sand and marshland, stretching along the Atlantic coast for more than 100 mi (160 km) between…

oyster catcher

(Encyclopedia) oyster catcher, common name for members of the family Haematopodidae, ploverlike shorebirds, cosmopolitan in distribution. Their distinctive red bills are long, blunt, and flattened,…

dispersion, in chemistry

(Encyclopedia) dispersion, in chemistry, mixture in which fine particles of one substance are scattered throughout another substance. A dispersion is classed as a suspension, colloid, or solution.…

caddis fly

(Encyclopedia) caddis fly, any of various insects of the order Trichoptera, with four hairy wings usually held back rooflike over the abdomen, long antennae, and chewing mouthparts. The aquatic…

George, Lake

(Encyclopedia) George, Lake, glacial lake, 33 mi (53 km) long and 1 to 3 mi (1.6–5 km) wide, in the foothills of the Adirondack Mts., NE N.Y.; it drains NE via rapids and waterfalls into Lake…

Wakefield, estate, United States

(Encyclopedia) Wakefield, family estate of George Washington, on the Potomac River, E Va.; part of the George Washington Birthplace National Monument (see National Parks and Monuments, tablenational…

George, Stefan

(Encyclopedia) George, StefanGeorge, Stefanshtāˈfän gāôrgˈə [key], 1868–1933, German poet, leader of the revolt against realism in German literature. He was poetically influenced by Greek classical…

concrete

(Encyclopedia) concrete, structural masonry material made by mixing broken stone or gravel with sand, cement, and water and allowing the mixture to harden into a solid mass. The cement is the…

Hanover, house of

(Encyclopedia) Hanover, house of, ruling dynasty of Hanover (see Hanover, province), which was descended from the Guelphs and which in 1714 acceded to the British throne in the person of George I.…