Columbia Encyclopedia

(Encyclopedia) Nafud nĕfo͞odˈ [key], desert area in the northern part of the Arabian peninsula, occupying a great oval depression; 180 mi (290 km) long and 140 mi (225 km) wide. This area of red sand is surrounde...

(Encyclopedia) arm, upper limb in humans. Three long bones form the framework of the arm: the humerus of the upper arm, and the radius (outer bone) and ulna (inner bone) of the forearm. The radius and ulna run paral...

(Encyclopedia) Ness, Loch lŏkh [key], lake, 22 mi (35 km) long, Highland, N central Scotland, in the Great Glen. More than 700 ft (213 m) deep and ice free, it is fed by the Oich and other streams and drained by th...

(Encyclopedia) Onega, Lake, Finnish Aäninen, Rus. Onezhskoye Ozero, lake, c.3,800 sq mi (9,800 sq km), NW European Russia, in Karelia, between Lake Ladoga and the White Sea. The second largest lake in Europe, it is...

(Encyclopedia) markhor märˈkôr [key], wild goat, Capra falconeri, found in the rugged mountains of central Asia, from S Russia to the W Himalayas. Largest of the goats, the male may stand over 40 in. (100 cm) at ...

(Encyclopedia) Eastern Highlands, c.2,400 mi (3,860 km) long, general name for the mountains and plateaus roughly paralleling the east and southeast coasts of Australia (including Tasmania) and forming the Continent...

(Encyclopedia) Cameron, John kămˈərən [key], c.1579–1625, Scottish scholar and theologian. As teacher, lecturer, and preacher at Bordeaux, Saumur, and other cities on the Continent, he came to be celebrated fo...

(Encyclopedia) Absheron əp– [key], peninsula, c.40 mi (60 km) long, extending into the Caspian Sea, E Azerbaijan. It is a dry, hilly area at the eastern end of the Greater Caucasus Mts. and is underlain by rich o...

(Encyclopedia) amenorrhea āmĕnˌərēˈa, əmĕnˌ– [key], cessation of menstruation. Primary amenorrhea is a delay in or a failure to start menstruation; secondary amenorrhea is an unexpected stop to the menstr...

(Encyclopedia) jaçana jəkănˈə, jəkänˈə [key], common name for members of the Jacanidae, a family of tropical and subtropical wading birds. Jaçanas, also called lily-trotters and lotus-birds, have long toes...