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cramp

(Encyclopedia)cramp, painful uncontrollable contraction of a muscle or group of muscles. The type that results from cold, strain, or disturbance of circulation (as experienced by swimmers) is eased by massage and t...

Natron, Lake

(Encyclopedia)Natron, Lake nāˈtrən [key], c.35 mi (60 km) long and 15 mi (20 km) wide, in the Great Rift Valley, E Africa, on the Kenya-Tanzania border. It has soda, salt, and magnesite deposits. ...

Djerid, Chott

(Encyclopedia)Djerid, Chott shôt jĕrēdˈ [key], salt lake, c.1,900 sq mi (4,920 sq km), W central Tunisia, N Africa. It is now an extensive salt flat with water only in its lower areas. ...

Kearns

(Encyclopedia)Kearns kûrnz [key], uninc. town (1990 pop. 28,874), Salt Lake co., N Utah, a suburb of Salt Lake City. Alfalfa and barley are grown and cattle and sheep are raised. There is copper mining nearby. ...

eye

(Encyclopedia)CE5 Cross section of human eye eye, organ of vision and light perception. In humans the eye is of the camera type, with an iris diaphragm and variable focusing, or accommodation. Other types of ey...

Jordan, river, United States

(Encyclopedia)Jordan, river, 60 mi (97 km) long, draining Utah Lake N into Great Salt Lake, N central Utah; it passes through Salt Lake City. Fed by numerous streams flowing off the Wasatch Range, the Jordan is use...

Salzkammergut

(Encyclopedia)Salzkammergut zältsˈkämˈərgo͝otˌ [key], resort area in Upper Austria, Styria, and Salzburg provs., W Austria. Known since antiquity for its salt mines, the region was banned to visitors until t...

Cockburn Town

(Encyclopedia)Cockburn Town, town (2021 pop. 4,831), capital of the British dependency of the Turks and Caicos Islands, located on Grand Turk ...

blueprint

(Encyclopedia)blueprint, white-on-blue photographic print, commonly of a working drawing used during building or manufacturing. The plan is first drawn to scale on a special paper or tracing cloth through which lig...

nitric acid

(Encyclopedia)nitric acid, chemical compound, HNO3, colorless, highly corrosive, poisonous liquid that gives off choking red or yellow fumes in moist air. It is miscible with water in all proportions. It forms an a...