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smog

(Encyclopedia)smog smŏg [key] [smoke+fog], dense, visible air pollution. Smog is commonly of two types. The gray smog of older industrial cities like London and New York derives from the massive combustion of coal...

Perak

(Encyclopedia)Perak pāˈrăk [key], state (1991 pop. 1,880,016), 8,030 sq mi (20,798 sq km), Malaysia, central Malay Peninsula, on the Strait of Malacca. Perak is bordered on the N by Thailand. The capital is Ipoh...

pharming

(Encyclopedia)pharming färˈmĭng [key], the use of genetically altered livestock, such as cows, goats, pigs, and chickens, to produce medically useful products. In pharming, researchers first create hybrid genes ...

New Castle

(Encyclopedia)New Castle. 1 City (1990 pop. 4,837), New Castle co., N Del., on the Delaware River. Mineral, metal, food, paper, and gypsum products are among its varied manufactures. It is also a major book distrib...

sap

(Encyclopedia)sap, fluid in plants consisting of water and dissolved substances. Cell sap refers to this fluid present in the large vacuole, or cell cavity, that occupies most of the central portion of mature plant...

Sarawak

(Encyclopedia)Sarawak səräˈwäk [key], state (1991 pop. 1,648,217), 48,342 sq mi (125,206 sq km), Malaysia, in NW Borneo and on the South China Sea. It is bordered on the NE by the states of Brunei and Sabah and...

Tulsa

(Encyclopedia)Tulsa tŭlˈsə [key], city (2020 pop. 413,066), seat of Tulsa co., NE Okla., on the Arkansas...

Virginia Beach

(Encyclopedia)Virginia Beach, resort city (1990 pop. 393,069), independent and in no county, SE Va., on the Atlantic coast; inc. 1906. In 1963, Princess Anne co. and the former small town of Virginia Beach were mer...

Sofia

(Encyclopedia)Sofia sōfēˈə, sōˈfēə [key], Bulg. Sofiya, city (1993 pop. 1,114,476), capital of Bulgaria, W central Bulgaria, on a high plain surrounded by the Balkan Mts. It is Bulgaria's chief industrial, ...

Bismarck Archipelago

(Encyclopedia)Bismarck Archipelago, volcanic island group, 19,200 sq mi (49,730 sq km), SW Pacific, a part of Papua New Guinea. The group includes New Britain (the largest island), New Ireland, the Admiralty Island...