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nuclear winter

(Encyclopedia)nuclear winter, theory holding that the smoke and dust produced by a large nuclear war would result in a prolonged period of cold on the earth. The earliest version of the theory, which was put forwar...

Ogata Kenzan

(Encyclopedia)Ogata Kenzan ōgäˈtä kĕnˈzän [key] 1663–1743, Japanese potter and painter; younger brother of Ogata Korin. A follower of the Rimpa school, he set up kilns for the production of ceramics in the...

lignite

(Encyclopedia)lignite lĭgˈnīt [key] or brown coal, carbonaceous fuel intermediate between coal and peat, brown or yellowish in color and woody in texture. It contains more moisture than coal and tends to dry and...

Manicouagan Reservoir

(Encyclopedia)Manicouagan Reservoir mănĭkwägˈən [key], annular artifical lake, 750 sq mi (1,942 sq km), SE Que., Canada, in a heavily forested area of the Canadian Shield. It has a maximum depth of 1,150 ft (3...

mastaba

(Encyclopedia)CE5 Mastaba mastaba măsˈtəbə [key], in Egyptian architecture, a sepulchral structure built aboveground. The mastabas of the early dynastic period (3200–2680 b.c.), such as those of the I dyn...

Ku K'ai-chih

(Encyclopedia)Ku K'ai-chih go͞o kī-jûr [key], c.344–c.406, Chinese painter, one of the most eminent painters before the T'ang dynasty. He was especially noted for his portraits but also painted landscapes. Non...

Backus, Isaac

(Encyclopedia)Backus, Isaac băkˈəs [key], 1724–1806, American clergyman, leader among New England Baptists and a champion of religious freedom, b. Norwich, Conn. Converted in the Great Awakening, he joined the...

agranulocytosis

(Encyclopedia)agranulocytosis əgrănˌyəlōsītōˈsis [key], disease in which the production of granulated white blood cells by the bone marrow is impaired. Although the disease may occur spontaneously it is usu...

Caere

(Encyclopedia)Caere sēˈrē [key], ancient city of Etruria, c.30 mi (50 km) N of Rome, Italy, at the site of the modern Cerveteri. Although a few miles from the sea, it had ports at Alsium (near modern Palo) and P...

Britain

(Encyclopedia)Britain brĭtˈən [key], alternate term for Great Britain, comprised of England, Scotland, and Wales. Often used synonymously with the United Kingdom, the name Britain is derived from Britannia, give...