Columbia Encyclopedia

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navigation

(Encyclopedia)navigation, science and technology of finding the position and directing the course of vessels and aircraft. The next great revolution in navigation occurred in the 20th cent., when radio signals ...

Houston

(Encyclopedia)Houston, city (2020 pop. 2,304,580), seat of Harris co., SE Tex., a deepwater port on the Houston Ship Channel; inc. 1837. Harrisburg (now part of Hou...

marine biology

(Encyclopedia)marine biology, study of ocean plants and animals and their ecological relationships. Marine organisms may be classified (according to their mode of life) as nektonic, planktonic, or benthic. Nektonic...

Saint Louis

(Encyclopedia)Saint Louis lo͞oˈĭs [key], city (1990 pop. 396,685), independent and in no county, E Mo., on the Mississippi River below the mouth of the Missouri; inc. as a city 1822. St. Louis has long been a ma...

Baghdad

(Encyclopedia)Baghdad or Bagdad both: băgˈdăd, bägdädˈ [key], city (2020 pop. 7,144,000), cap...

insurance

(Encyclopedia)insurance or assurance, device for indemnifying or guaranteeing an individual against loss. Reimbursement is made from a fund to which many individuals exposed to the same risk have contributed certai...

Prague

(Encyclopedia)Prague präg, prāg [key], Czech Praha, Ger. Prag, city (1993 pop. 1,216,500), capital and largest city of the Czech Republic and former capital of Czechoslovakia, on both banks of the Vltava (Ger. Mo...

corporation

(Encyclopedia)corporation, in law, organization enjoying legal personality for the purpose of carrying on certain activities. Most corporations are businesses for profit; they are usually organized by three or more...

Coleridge, Samuel Taylor

(Encyclopedia)Coleridge, Samuel Taylor, 1772–1834, English poet and man of letters, b. Ottery St. Mary, Devonshire; one of the most brilliant, versatile, and influential figures in the English romantic movement. ...

Colorado, rivers, United States and Mexico

(Encyclopedia)Colorado [1] kŏlərădˈə, –rădˈō, –räˈdō [2] kŏlərāˈdə, –räˈdə [key]. 1 Great river of the SW United States, 1,450 mi (2,334 km) long, rising in the Rocky Mts. of N Colo., and f...