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Stark, Freya Madeline

(Encyclopedia)Stark, Freya Madeline frāˈə [key], 1893–1993, British author, traveler, and Arabist. The first European to visit several areas in the Middle East, she was born in Paris to artist parents and grew...

Black Hills

(Encyclopedia)Black Hills, rugged mountains, c.6,000 sq mi (15,540 sq km), enclosed by the Belle Fourche and Cheyenne rivers, SW S.Dak. and NE Wyo., and rising c.2,500 ft (760 m) above the surrounding Great Plains;...

aviation

(Encyclopedia)aviation, operation of heavier-than-air aircraft and related activities. Aviation can be conveniently divided into military aviation, air transport, and general aviation. Military aviation includes al...

milkweed

(Encyclopedia)milkweed, common name for members of the Asclepiadaceae, a family of mostly perennial herbs and shrubs characterized by milky sap, a tuft of silky hairs attached to the seed (for wind distribution), a...

Managua

(Encyclopedia)Managua mänäˈgwä [key], city (1995 pop. 819,731), W Nicaragua, capital and largest city of Nicaragua, on the southern shore of Lake Managua. It is the commercial and industrial center of the count...

Hellman, Lillian

(Encyclopedia)Hellman, Lillian, 1905–84, American dramatist, b. New Orleans. Her plays, although often melodramatic, are marked by intelligence and craftsmanship. The Children's Hour (1934), her first drama, conc...

harmonic

(Encyclopedia)harmonic. 1 Physical term describing the vibration in segments of a sound-producing body (see sound). A string vibrates simultaneously in its whole length and in segments of halves, thirds, fourths, e...

anemone

(Encyclopedia)anemone ənĕmˈənē [key] or windflower, any of the perennial herbs, wild or cultivated, of the genus Anemone of the family Ranunculaceae (buttercup family). A rich legendary history has gained the ...

geomorphology

(Encyclopedia)geomorphology, study of the origin and evolution of the earth's landforms, both on the continents and within the ocean basins. It is concerned with the internal geologic processes of the earth's crust...

cone, in botany

(Encyclopedia)cone or strobilus strŏbˈələs [key], in botany, reproductive organ of the gymnosperms (the conifers, cycads, and ginkgoes). Like the flower in the angiosperms (flowering plants), the cone is actual...