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Comanche

(Encyclopedia)Comanche kəmănˈchē [key], Native North Americans belonging to the Shoshonean group of the Uto-Aztecan branch of the Aztec-Tanoan linguistic stock (see Native American languages). They originated f...

hemlock

(Encyclopedia)hemlock, any tree of the genus Tsuga, coniferous evergreens of the family Pinaceae (pine family) native to North America and Asia. The common hemlock of E North America is the eastern hemlock, T. cana...

polecat

(Encyclopedia)polecat, carnivorous mammal of the weasel family. The name refers especially to the common Old World polecat, Mustela putorius, found in wooded areas of N Eurasia and N Africa. Similar to weasels, but...

ultrasonics

(Encyclopedia)ultrasonics, study and application of the energy of sound waves vibrating at frequencies greater than 20,000 cycles per second, i.e., beyond the range of human hearing. The application of sound energy...

concretion

(Encyclopedia)concretion, mass or nodule of mineral matter, usually oval or nearly spherical in shape, and occurring in sedimentary rock. It is formed by the accumulation of mineral matter in the pore spaces of the...

Claiborne, Craig

(Encyclopedia)Claiborne, Craig, 1920–2000, American food journalist, restaurant critic, and cookbook author, b. Sunflower, Miss., studied École Hôtelière de Lausanne, Switz. After settling in New York and writ...

Alaska North Slope

(Encyclopedia)Alaska North Slope or Arctic North Slope, region, N Alaska, sloping from the Brooks Range N to the Arctic Ocean. In 1968 large petroleum reserves were found in the Prudhoe Bay area. In 1977 the 800-mi...

Cheyenne Mountain

(Encyclopedia)Cheyenne Mountain, c.9,565 ft (2,915 m), in the Front Range of the Rocky Mts., El Paso co., central Colo., SW of Colorado Springs. Halfway up the mountain, in North Cheyenne Park, is the Shrine of the...

Cleaver, Eldridge

(Encyclopedia)Cleaver, Eldridge (Leroy Eldridge Cleaver), 1935–98, African-American social activist, b. Wabbaseka, Ark. Growing up in Los Angeles, he spent much of 1954–66 in prison for various crimes including...

Harz

(Encyclopedia)Harz härts [key], mountain range, northern Germany, extending c.60 mi (100 km) between the Elbe and Leine rivers. The rugged mountains were once densely forested. They culminate in Brocken peak (3,74...