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Lewisohn, Ludwig

(Encyclopedia)Lewisohn, Ludwig lo͞oˈĭzōn [key], 1882–1955, American author, b. Berlin. After teaching German at Ohio State (1911–19), he was associate editor for the Nation (1920–24). His novels include D...

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 ...

Port Arthur, city, United States

(Encyclopedia)Port Arthur, city (1990 pop. 58,724), Jefferson co., SE Tex., on Sabine Lake; inc. 1898. A deepwater port of entry on the Sabine-Neches Canal, it is an extensive oil port, with many large refineries, ...

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...

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...

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...

Bizerte

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

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...

echo, in acoustics

(Encyclopedia)echo, reflection of a sound wave back to its source in sufficient strength and with a sufficient time lag to be separately distinguished. If a sound wave returns within 1⁄10 sec, the human ear is in...