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Ozarks, the

(Encyclopedia)Ozarks, the, or Ozark Plateau, upland region, actually a dissected plateau, c.50,000 sq mi (129,500 sq km), chiefly in S Mo. and N Ark., but partly in Oklahoma and Kansas, between the Arkansas and Mis...

Cambrian period

(Encyclopedia)Cambrian period [Lat. Cambria=Wales], first period of the Paleozoic geologic era (see Geologic Timescale, tablegeologic timescale, table) extending from approximately 570 to 505 million years ago. It ...

sediment

(Encyclopedia)sediment, mineral or organic particles that are deposited by the action of wind, water, or glacial ice. These sediments can eventually form sedimentary rocks (see rock). Sediments form sedimentary ...

Springsteen, Bruce Frederick

(Encyclopedia)Springsteen, Bruce Frederick, 1949–, American singer, guitarist, and songwriter, nicknamed “The Boss,” b. Long Branch, N.J. Springsteen established himself as a singer and songwriter, as well as...

Rephidim

(Encyclopedia)Rephidim rĕfˈĭdĭm, rēfĭdˈĭm [key], in the Bible, unlocated place in Sinai where Moses struck the rock and brought forth water. ...

roller

(Encyclopedia)roller, common name for brightly colored Old World birds noted for performing somersaults in flight. They include the rollers proper (subfamily Coraciinae) and ground rollers (subfamily Brachypteracii...

Hooker, John Lee

(Encyclopedia)Hooker, John Lee, 1917–2001, American blues singer and guitarist, b. near Clarksdale, Miss. From a cotton-sharecropping family, he learned the blues from his stepfather and various visiting Delta bl...

Ellora

(Encyclopedia)Ellora ĕlōˈrə [key], village, E central Maharashtra state, India. Extending more than 1 mi (1.6 km) on a hill are 34 rock and cave temples (5th–13th cent.), most of them Hindu but some Buddhist ...

borer

(Encyclopedia)borer, name applied to various animals that are injurious because of their ability to penetrate plant or animal tissues. Among insects, some borers are beetles, e.g., the flatheaded apple-tree borer, ...

waterfall

(Encyclopedia)waterfall, a sudden unsupported drop in a stream. It is formed when the stream course is interrupted as when a stream passes over a layer of harder rock—often igneous—to an area of softer and ther...
 

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