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mechanized warfare

(Encyclopedia)mechanized warfare, employment of modern mobile attack and defense tactics that depend upon machines, more particularly upon vehicles powered by gasoline and diesel engines. Central to the waging of m...

isobar

(Encyclopedia)isobar īˌsəbărˈĭk [key], line drawn on a weather map through points of equal atmospheric pressure. Isobars are used to define cyclones (low-pressure regions) and anticyclones (high-pressure regi...

Ozark

(Encyclopedia)Ozark ōˈzärk [key], city (1990 pop. 12,922), seat of Dale co., SE Ala.; settled 1820, inc. 1870. It is a shipping center for nuts and timber. Manufactures include aircraft, railcars, farm machinery...

Burj Khalifa

(Encyclopedia)Burj Khalifa [Arab.,=Khalifa Tower], skyscraper in Dubai, United Arab Emirates, that is the tallest building in the world. The centerpiece of a large urban development, it stands 2,717 ft (828 m) high...

elevation

(Encyclopedia)elevation, vertical distance from a datum plane, usually mean sea level to a point above the earth. Often used synonymously with altitude, elevation is the height on the earth's surface and altitude, ...

Nyos, Lake

(Encyclopedia)Nyos, Lake nēōsˈ [key], freshwater lake in a volcanic crater in North-West prov., Cameroon, 15 mi (24 km) ENE of Wum. On Aug. 21, 1986, carbon dioxide gas was released from the mineral-saturated wa...

Utsunomiya

(Encyclopedia)Utsunomiya o͞otso͞onōˈmēä [key], city (1990 pop. 426,809), capital of Tochigi prefecture, central Honshu, Japan. A tobacco-processing center and tourist resort, it has industries that produce ai...

El Cajon

(Encyclopedia)El Cajon ĕl kähōnˈ [key], city (2020 pop. 106,215), San Diego co., S Calif.; inc. 1912. E...

crossword puzzle

(Encyclopedia)crossword puzzle, word game in which words corresponding to numbered clues are put into a grid of horizontal and vertical squares to form intersecting words. The puzzle is solved when a player supplie...

Pico Rivera

(Encyclopedia)Pico Rivera pēˈkō rĭvĕrˈə [key], city (1990 pop. 59,177), Los Angeles co., SW Calif., SE of Los Angeles on the San Gabriel and Rio Hondo rivers; inc. 1958 with the union of Pico and Rivera into...