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pothole

(Encyclopedia)pothole, in geology, cylindrical pit formed in the rocky channel of a turbulent stream. It is formed and enlarged by the abrading action of pebbles and cobbles that are carried by eddies, or circular ...

Petropavlovsk, city, Russia

(Encyclopedia)Petropavlovsk kəmchätˈskē [key], city (1989 pop. 269,000), capital of Kamchatka Territory, Russian Far East. It is a major port and naval base on the Northern Sea Route, and there are shipyards an...

Barents Sea

(Encyclopedia)Barents Sea, arm of the Arctic Ocean, N of Norway and European Russia, partially enclosed by Franz Josef Land on the north, Novaya Zemlya on the east, and Svalbard on the west. Its waters are warmed b...

Saint Lawrence, Gulf of

(Encyclopedia)Saint Lawrence, Gulf of, arm of the Atlantic Ocean, c.100,000 sq mi (259,000 sq km), SE Canada, extending c.250 mi (400 km) from the mouth of the Saint Lawrence River to Newfoundland on the east. At i...

cuesta

(Encyclopedia)cuesta kwĕsˈtə [key], asymmetric ridge characterized by a short, steep escarpment on one side, and a long, gentle slope on the other. The steep side exposes the edge of erosion-resistant rock layer...

fog

(Encyclopedia)fog, aggregation of water droplets or ice crystals immediately above the surface of the earth (i.e., a cloud near the ground). A light or thin fog is usually called a mist. Fog may occur when the mois...

Rasmussen, Knud Johan Victor

(Encyclopedia)Rasmussen, Knud Johan Victor kəno͞otˈ yōˈhän vĭkˈtôr räsˈmo͝osən [key], 1879–1933, Danish arctic explorer and ethnologist. Born in Greenland of Eskimo ancestry on his mother's side, he ...

geoduck

(Encyclopedia)geoduck go͞oˈēdŭkˌ [key], common name of a Pacific clam, Panope generosa. The largest intertidal burrowing bivalve in the world, the geoduck may weigh up to 12 lb (5.4 kg). The shell is thin, lac...

water skiing

(Encyclopedia)water skiing, sport of riding on skis along the water's surface while being towed by a motorboat. It probably originated on the French Riviera in the early 1920s, and was known in the United States by...

racquets

(Encyclopedia)racquets, game played by two or four persons on a court 60 by 30 ft (18.3 m by 9.1 m); it is surrounded by three walls 30 ft (9.1 m) high and a backwall 15 ft (4.6 m) high. The ball, 1 in. (2.54 cm) i...
 

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