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birthmark
(Encyclopedia) birthmark, pigmented maldevelopment of the skin that varies in size, either present at birth or developing later. Birthmarks may appear as moles (melanocytic nevi) that vary in color…cassiterite
(Encyclopedia) cassiteritecassiteritekəsĭtˈərīt [key], heavy, brown-to-black mineral, tin oxide, SnO2, crystallizing in the tetragonal system. It is found as short prismatic crystals and as irregular…bushmaster
(Encyclopedia) bushmaster, large venomous snake, Lachesis muta, of Central America and N South America. It is a member of the pit viper family, which also includes the rattlesnake. The largest New…tanzanite
(Encyclopedia) tanzanitetanzanitetănzănˈīt [key], beautiful gemstone discovered in 1967 in the Umba Valley near the Usambara Mts. in Tanzania, a precious variety of the mineral zoisite, a calcium…cattail
(Encyclopedia) cattail or reed mace, any plant of the genus Typha, perennial herbs found in almost all open marshes. The cattail (also called club rush) has long narrow leaves, sometimes used for…bat
(Encyclopedia) bat, winged mammal of the order Chiroptera, which includes 900–1,000 species classified in about 200 genera and 17 families. Bats range in size from a wingspread of over 5 ft (150 cm)…Hawkes, John
(Encyclopedia) Hawkes, John (John Clendennin Burne Hawkes, Jr.), 1925–98, American writer, b. Stamford, Conn., grad. Harvard, 1949. He taught English at Brown Univ. after 1958. Hawkes is considered…Margaret
(Encyclopedia) Margaret, 1930–2002, British princess, second daughter of King George VI and sister of Queen Elizabeth II, b. Glamis, Scotland. In 1960 she married a commoner, the photographer Antony…Briggs, Le Baron Russell
(Encyclopedia) Briggs, Le Baron Russell, 1855–1934, American educator, b. Salem, Mass., grad. Harvard (B.A., 1875; M.A., 1882). As a teacher at Harvard he developed, with Barrett Wendell, a…Britton, Nathaniel Lord
(Encyclopedia) Britton, Nathaniel Lord, 1859–1934, American botanist, grad. Columbia School of Mines, 1879. He taught geology and botany at Columbia, 1879–96. He was the New York Botanical Garden's…Trending
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