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floodplain
(Encyclopedia)floodplain, level land along the course of a river formed by the deposition of sediment during periodic floods. Floodplains contain such features as levees, backswamps, delta plains, and oxbow lakes. ...turquoise
(Encyclopedia)turquoise, hydrous phosphate of aluminum and copper, Al2(OH)3PO4·H2O+Cu, used as a gem. It occurs rarely in crystal form, but is usually cryptocrystalline. Turquoise is opaque and has a waxy luster; ...Lovelace, Richard
(Encyclopedia)Lovelace, Richard, 1618–1657?, one of the English Cavalier poets. He was the son of a Kentish knight and was educated at Oxford. In 1642 he was briefly imprisoned for having presented to Parliament ...Poyang
(Encyclopedia)Poyang or P'o-yang both: pô-yäng [key], shallow lake, c.1,000 sq mi (2,590 sq km), N Jiangxi prov., SE China; one of China's largest lakes. It serves as a natural overflow reservoir for the Chang (Y...Tu Fu
(Encyclopedia)Tu Fu do͞o fo͞o [key], 712–70, Chinese poet. In Pinyin, his name is romanized as Du Fu. Tu Fu is often considered the greatest of Chinese poets. He did not pass the imperial civil service examinat...Piacenza
(Encyclopedia)Piacenza pyächānˈtsä [key], city (1991 pop. 102,268), capital of Piacenza prov., in Emilia-Romagna, on the Po River. It is an agricultural, commercial, and industrial center. Manufactures include ...acid anhydride
(Encyclopedia)acid anhydride ănhīˈdrīd, –drəd [key], chemical compound that reacts with water to form an acid (see acids and bases). Anhydrides of inorganic acids are usually oxides of nonmetallic elements. ...T'ang, Chinese dynasty
(Encyclopedia)T'ang täng [key], dynasty of China that ruled from 618 to 907. It was founded by Li Yuan and his son Li Shih-min, with the aid of Turkish allies. The early strength of the T'ang was built directly up...Lop Nur
(Encyclopedia)Lop Nur lôp nûr [key], salt basin, SE Xinjiang Uygur Autonomous Region, China, in the Tarim River basin. Since 1964, Lop Nur has been used by the China for its nuclear test explosions. Once a large ...Cisalpine Republic
(Encyclopedia)Cisalpine Republic sĭsălˈpīn [key], Italian state created by Napoleon Bonaparte in 1797 by uniting the Transpadane and Cispadane republics, which he had established (1796) N and S of the Po River....Browse by Subject
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