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Pinar del Rio, province, Cuba

(Encyclopedia)Pinar del Rio pēnärˈ dĕl rēˈō [key], province (1994 est. pop. 700,000), W Cuba, the westernmost province of Cuba. Pinar del Rio is the capital. The province, occupying a narrow area, has an irr...

puma

(Encyclopedia)puma ko͞oˈgər [key], New World member of the cat family, Puma concolor. Also known as mountain lion, catamount, panther, and painter, it ranges from S British Columbia to the southern tip of South ...

planarian

(Encyclopedia)planarian, common name for several genera of the free-living (turbellarian) flatworms belonging to the order Tricladida, a name that derives from their characteristic three-branched digestive cavities...

neuritis

(Encyclopedia)neuritis no͝orīˈtĭs, nyo͝o– [key], inflammation of a peripheral nerve, often accompanied by degenerative changes in nervous tissue. The cause can be mechanical (injury, pressure), vascular (occ...

Nordhaus, William Dabney

(Encyclopedia)Nordhaus, William Dabney, 1941–, American economist, b. Albuquerque, N.Mex., Ph.D. Massachusetts Institute of Technology, 1967. A professor at Yale since 1967, he has focused on the economic effects...

octave

(Encyclopedia)octave ŏkˈtĭv [key] [Lat.,=eighth], in music, the perfect interval between the 1st and 8th tones of the diatonic scale. The upper note of a perfect octave has a frequency of vibration twice that of...

limpet

(Encyclopedia)limpet, marine gastropod mollusk with a simple, flattened, conical shell, found in cooler waters of the Atlantic and the Pacific oceans. Certain species creep over rocks, feeding on algae during high ...

Lena

(Encyclopedia)Lena lēˈnə, Rus. lyĕˈnə [key], river, easternmost of the great rivers of Siberia, c.2,670 mi (4,300 km) long, rising near Lake Baykal, SE Siberian Russia. It flows northeast, then north along th...

Marmara, Sea of

(Encyclopedia)Marmara, Sea of, or Sea of Marmora, c.4,430 sq mi (11,474 sq km), NW Turkey, between Europe in the north and Asia in the south. The Sea of Marmara, c.175 mi (280 km) long and 50 mi (80 km) wide, is co...

Pavilion Lake

(Encyclopedia)Pavilion Lake, lake, 3.6 mi (5.8 km) long, 2,625 ft (800 m) wide, and 213 ft (65 m) deep at its maximum depth, in Marble Canyon at the S end of the Marble Range near Cache Creek, S British Columbia, C...