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amphoterism

(Encyclopedia)amphoterism ămˌfətĕrˈĭzm [key], in chemistry, the property of certain substances of acting either as acids or as bases depending on the reaction in which they are involved. Many hydroxide compou...

Naha

(Encyclopedia)Naha näˈhä [key], city (1990 pop. 304,836), on Okinawa island, in the Ryukyu Islands, Japan. A port on the southwest coast, it is also the chief manufacturing center of the island. Long the economi...

Nakhon Ratchasima

(Encyclopedia)Nakhon Ratchasima kōrätˈ [key], city (1990 pop. 204,121), capital of Nakhon Ratchasima prov., S central Thailand, on the Mun River. Strategically located near the mountain pass leading from the cen...

liberation theology

(Encyclopedia)liberation theology, belief that the Christian Gospel demands “a preferential option for the poor,” and that the church should be involved in the struggle for economic and political justice in the...

Midway

(Encyclopedia)Midway, island group (2 sq mi/5.2 sq km), central Pacific, c.1,150 mi (1,850 km) NW of Honolulu, comprising Sand and Eastern islands with the surrounding atoll. Discovered by Americans in 1859, Midway...

Bangor, city, United States

(Encyclopedia)Bangor băngˈgôr, bănˈ–, băngˈgər [key], city (2020 pop. 31,753), seat of Pe...

Yaoundé

(Encyclopedia)Yaoundé yäo͞ondāˈ [key], city (1990 est. pop. 750,000), capital of Cameroon. It is the country's administrative, financial, and communications center. Manufactures include cigarettes, dairy produ...

Westminster

(Encyclopedia)Westminster. 1 Residential city (1990 pop. 78,118), Orange co., S Calif.; founded 1870 as a temperance colony for Presbyterians, inc. 1957. It has several industrial parks. Naval Weapons Station Seal ...

Cahokia Mounds

(Encyclopedia)Cahokia Mounds, approximately 85 surviving Native American earthworks, most in Cahokia Mounds State Historic Site, SW Ill., near East St. Louis; largest group of mounds N of Mexico. Monks' Mound, a re...

bias, in electricity

(Encyclopedia)bias, a voltage, current, or other input applied to a device or system as a reference or to set its conditions of operation. A bias is usually steady but may vary with time, usually within a fixed and...