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corundum

(Encyclopedia)corundum kərŭnˈdəm [key], mineral, aluminum oxide, Al2O3. The clear varieties are used as gems and the opaque as abrasive materials. Corundum occurs in crystals of the hexagonal system and in mass...

goldfish

(Encyclopedia)goldfish, freshwater fish, genus Carassius, of the family Cyprinidae, popular in aquariums and ponds. Native to China, it was first domesticated centuries ago from the wild form, an olive-colored carp...

jungle fowl

(Encyclopedia)jungle fowl, common name for small, terrestrial wild fowl comprising four species in the genus Gallus. Most important of these is the red jungle fowl, which Charles Darwin determined to be the ancesto...

arborvitae

(Encyclopedia)arborvitae ärˌbərvīˈtē [key] [Lat.,=tree of life], aromatic evergreen tree of the genus Thuja of the family Cupressaceae (cypress family), with scalelike leaves borne on flattened branchlets of ...

brownstone

(Encyclopedia)brownstone, red to brown variety of sandstone. Its unusual color is caused in some instances by the presence of red iron oxide which acts as a cement, binding the sand grains together. Vast thicknesse...

Agassiz, Lake

(Encyclopedia)Agassiz, Lake ăgˈəsē [key], glacial lake of the Pleistocene epoch, c.700 mi (1,130 km) long, 250 mi (400 km) wide, formed by the melting of the continental ice sheet beginning some 14,000 years ag...

state flowers

(Encyclopedia)state flowers. Each state of the United States has designated, usually by legislative action, one flower as its floral emblem; the rose has been designated by Congress as the national flower of the Un...

quebracho

(Encyclopedia)quebracho kābräˈchō [key], name for a tanning substance and for the trees from which it comes, chiefly the red quebracho, or quebracho colorado (Schinopsis lorentzii), of the family Anacardiaceae ...

Williams, Ted

(Encyclopedia)Williams, Ted (Theodore Samuel Williams), 1918–2002, American baseball player, b. San Diego, Calif. At the age of 17 he began playing professional ball with the San Diego Padres of the Pacific Coast...

Damascus ware

(Encyclopedia)Damascus ware, early siliceous-glazed semiporcelain produced in Damascus. The most common decoration is in blue and black. However, purple, sage green, and, rarely, a red can be found. Made mainly in ...