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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. ...

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 ...

Hainan

(Encyclopedia)Hainan hīˈnänˈ [key], island and province, c.13,100 sq mi (33,940 sq km), China, in the S...

Nian Rebellion

(Encyclopedia)Nian Rebellion or Nien Rebellion both: nēˈĕn [key], uprising that occurred against the Ch'ing dynasty of China. Bands [Chinese,=nien] of antigovernment rebels in the south part of the North China P...

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....

Adriatic Sea

(Encyclopedia)Adriatic Sea ādrēăˈtĭk [key], arm of the Mediterranean Sea, between Italy and the Balkan Peninsula. It extends c.500 mi (800 km) from the Gulf of Venice, at its head, SE to the Strait of Otranto,...

Wright, Henry

(Encyclopedia)Wright, Henry, 1878–1936, American landscape architect and community planner, b. Lawrence, Kans., studied architecture at the Univ. of Pennsylvania. He was widely recognized as a leader in the movem...

Roman roads

(Encyclopedia)Roman roads, ancient system of highways linking Rome with its provinces. Their primary purpose was military, but they also were of great commercial importance and brought the distant provinces in touc...

Turin

(Encyclopedia)Turin to͝orˈĭn, tyo͝orˈ–, tyo͝orĭnˈ [key], Ital. Torino, city (1991 pop. 962,507), capital of Piedmont and of Turin prov., NW Italy, at the confluence of the Po and Dora Riparia rivers. It i...