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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 ...

Pinero, Sir Arthur Wing

(Encyclopedia)Pinero, Sir Arthur Wing pĭnērˈō [key], 1855–1934, English dramatist. He achieved initial success with farces, such as The Magistrate (1885), and sentimental comedies, such as Sweet Lavender (188...

automatic tuning control

(Encyclopedia)automatic tuning control (ATC), method or device to keep a radio or television receiver automatically tuned to a desired frequency or channel. Assuming that the receiver is at least approximately tune...

North Sea

(Encyclopedia)North Sea, arm of the Atlantic Ocean, c.222,000 sq mi (574,980 sq km), c.600 mi (1,000 km) long and c.400 mi (640 km) wide, NW of Central Europe. It washes the shores of Great Britain, Norway, Denmark...

Bassas da India

(Encyclopedia)Bassas da India bäˌsäs də ēndyäˈ [key], uninhabited atoll, 0.1 sq mi (0.2 sq km), in the S Mozambique Channel, W Indian Ocean, about midway between Madagascar and Mozambique, part of the Scatte...

Sudd

(Encyclopedia)Sudd so͝od [key], swampy region, c.200 mi (320 km) long, and c.150 mi (240 km) wide, central South Sudan, E central Africa. It is fed by the Bahr el Jebel, the Bahr el Ghazal, and the Bahr el Arab, h...

Adam's Bridge

(Encyclopedia)Adam's Bridge or Rama's Bridge räˈmə [key], chain of shoals, c.18 mi (30 km) long, SW Palk Strait, between India and island nation of Sri Lanka. At high tide it is covered by c.4 ft (1.2 m) of wate...

Bizerte

(Encyclopedia)Bizerte bēzĕrtˈ [key], Arab. Banzart, city, N Tunisia, on the Mediterranean Sea. It is an ...

Usedom

(Encyclopedia)Usedom o͞ozˈnäm [key], island, 164 sq mi (425 sq km), in the Baltic Sea. It is divided between Mecklenburg–West Pomerania state, Germany, and Poland. Usedom is separated from the mainland by Stet...

Kyushu

(Encyclopedia)Kyushu kyo͞oˈsho͞o [key], island (1990 pop. 13,064,955), c.13,760 sq mi (35,640 sq km), S Japan. It is the third largest, southernmost, and most densely populated of the major islands of Japan. It ...