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electret

(Encyclopedia) electret, solid electrically insulating, or dielectric, material that has acquired a long-lasting electrostatic polarization. Electrets are produced by heating certain dielectric…

shoebill stork

(Encyclopedia) shoebill stork, common name for a large (up to 54 in./122 cm) tall, storklike bird, Balaeniceps rex. Also known as the whalehead, it is noted for its large head and unusually long and…

Bedford, Gunning, Jr.

(Encyclopedia) Bedford, Gunning, Jr., 1747–1812, American political leader, b. Philadelphia. Settling in Delaware, Bedford became a member of the local legislature, attorney general (1784–89), and a…

Dobson, William

(Encyclopedia) Dobson, William, 1610–46, English court painter. After the death of Van Dyck, Dobson was made court painter to Charles I and did some interesting court portraits. Some of his works are…

Manila hemp

(Encyclopedia) Manila hemp, the most important of the cordage fibers. It is obtained chiefly from the Manila hemp plant (Musa textilis) of the family Musaceae (banana family). It is grown mainly in…

sodium hydroxide

(Encyclopedia) sodium hydroxide, chemical compound, NaOH, a white crystalline substance that readily absorbs carbon dioxide and moisture from the air. It is very soluble in water, alcohol, and…

sandstorm

(Encyclopedia) sandstorm, strong dry wind blowing over the desert that raises and carries along clouds of sand or dust often so dense as to obscure the sun and reduce visibility almost to zero; also…

Pleasanton

(Encyclopedia) Pleasanton, city (1990 pop. 50,553), Alameda co., W Calif., a suburb of the San Francisco–Oakland area, in a vineyard and dairy region; inc. 1894. Wine and cheese are produced, and…

Köping

(Encyclopedia) KöpingKöpingchöˈpĭngˌ [key], city (1990 pop. 18,850), Västmanland co., S central Sweden, at the western end of Lake Mälaren. It is an important lake port and a commercial and…

Tychyna, Pavlo

(Encyclopedia) Tychyna, Pavlo, 1891–1967, Ukrainian poet. Tychyna's first volume of verse (Solar Clarinets, 1919) revealed a strong symbolist influence. His later poetry, including The Party is our…