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amphibole

(Encyclopedia)amphibole ămˈfəbōlˌ [key], any of a group of widely distributed rock-forming minerals, magnesium-iron silicates, often with traces of calcium, aluminum, sodium, titanium, and other elements. The ...

Hudson, William Henry

(Encyclopedia)Hudson, William Henry, 1841–1922, English author and naturalist, b. Quilmes, Argentina, of American parents. He spent his childhood on the pampas but developed a heart condition and finally emigrate...

Doulton ware

(Encyclopedia)Doulton ware dōlˈtən [key], English pottery produced at Lambeth after 1815, first by John Doulton and his partners, then by his descendants. It won the medal at the Exhibition of 1851 and more than...

Cornell, Katharine

(Encyclopedia)Cornell, Katharine, 1898–1974, American actress, b. Berlin. Cornell made her debut in 1916 with the Washington Square Players. In 1921 she married Guthrie McClintic, a producer-director. From their ...

Christmasberry

(Encyclopedia)Christmasberry or toyon tōˈyən [key], evergreen tree or shrub (Photinia arbutifolia) of the family Rosaceae (rose family), found on the Pacific coast of North America. Its white flowers are followe...

pigweed

(Encyclopedia)pigweed, name for several weedy plants, particularly the common pigweed or lamb's-quarters of the family Chenopodiaceae (goosefoot family), the rough pigweed, or green amaranth, of the related family ...

obsidian

(Encyclopedia)obsidian ŏbsĭdˈēən [key], a volcanic glass, homogeneous in texture and having a low water content, with a vitreous luster and a conchoidal fracture. The color is commonly black, but may be some s...

Papahānaumokuākea Marine National Monument

(Encyclopedia)Papahānaumokuākea Marine National Monument, 582,578 sq mi (1,508,870 sq km), in the Pacific Ocean surrounding the NW Hawaiian Islands, c.270 mi (435 km) NW of Oahu; est. 2006 as Northwestern Hawaiia...

lemon

(Encyclopedia)lemon, one of the citrus fruits, from a tree (Citrus limon) of the family Rutaceae (orange family), probably native to India. A small tree (to about 15 ft/5 m tall) with thorny branches and purple-edg...

Dover, cities, United States

(Encyclopedia)Dover. 1 City (2020 pop. 39,403), state capital, and seat of Kent co., central Del., on the St. Jones River; founded 1683 on orders of William ...