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Bell, Andrew

(Encyclopedia)Bell, Andrew, 1753–1832, British educator, b. St. Andrews, Scotland. After seven years in Virginia as a tutor, he returned to England, was ordained a deacon, and later (1789) became superintendent o...

gland

(Encyclopedia)gland, organ that manufactures chemical substances. A gland may vary from a single cell to a complex system of tubes that unite and open onto a surface through a duct. The endocrine glands, e.g., the ...

Intracoastal Waterway

(Encyclopedia)Intracoastal Waterway, c.3,000 mi (4,827 km) long, partly natural, partly artificial, providing sheltered passage for commercial and leisure boats along the U.S. Atlantic coast from Boston, Mass. to K...

William and Mary in Virginia, College of

(Encyclopedia)William and Mary in Virginia, College of, mainly at Williamsburg; state supported; coeducational; chartered 1693, opened 1694 by Episcopalians under James Blair. It became a university in 1779. The se...

mandates

(Encyclopedia)mandates, system of trusteeships established by Article 22 of the Covenant of the League of Nations for the administration of former Turkish territories and of former German colonies. As finally adopt...

Gates, Bill

(Encyclopedia)Gates, Bill (William Henry Gates 3d), 1955–, American business executive, b. Seattle, Wash. At the age of 19, Gates founded (1975) the Microsoft Corp....

shorthand

(Encyclopedia)CE5 Shorthand systems shorthand, any brief, rapid system of writing that may be used in transcribing, or recording, the spoken word. Such systems, many having characters based on the letters of th...

blood groups

(Encyclopedia)blood groups, differentiation of blood by type, classified according to immunological (antigenic) properties, which are determined by specific substances on the surface of red blood cells. Blood group...

Pisa

(Encyclopedia)Pisa pēˈsä [key], city (1991 pop. 98,928), capital of Pisa prov., Tuscany, N central Italy, on the Arno River. It is now c.6 mi (9.7 km) from the Tyrrhenian Sea, which once reached the city. Pisa i...

relativity

(Encyclopedia)relativity, physical theory, introduced by Albert Einstein, that discards the concept of absolute motion and instead treats only relative motion between two systems or frames of reference. One consequ...