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party, political

(Encyclopedia)party, political, organization whose aim is to gain control of the government apparatus, usually through the election of its candidates to public office. Political parties take many forms, but their m...

Palaeologus

(Encyclopedia)Palaeologus pālēŏlˈəgəs [key], Greek dynasty that ruled the Byzantine Empire from its restoration in 1261 to its final conquest by the Turks in 1453. The first emperor was Michael VIII, restorer...

storm

(Encyclopedia)storm, disturbance of the ordinary conditions of the atmosphere attended by wind, rain, snow, sleet, hail, or thunder and lightning. Types of storms include the extratropical cyclone, the common, larg...

Boleyn, Anne

(Encyclopedia)Boleyn, Anne bo͝olˈĭn, bo͝olĭnˈ [key], 1507?–1536, second queen consort of Henry VIII and mother of Elizabeth I. She was the daughter of Sir Thomas Boleyn, later earl of Wiltshire and Ormonde,...

Victor Amadeus II

(Encyclopedia)Victor Amadeus II ămədēˈəs [key], 1666–1732, duke of Savoy (1675–1713), king of Sicily (1713–20), king of Sardinia (1720–30). Succeeding his father, Charles Emmanuel II, as duke of Savoy,...

weather balloon

(Encyclopedia)weather balloon, balloon used in the measurement and evaluation of mostly upper atmospheric conditions (see atmosphere). Information may be gathered during the vertical ascent of the balloon through t...

glacier

(Encyclopedia)glacier, moving mass of ice that survives year to year, formed by the compacting of snow into névé and then into granular ice and set in motion outward and downward by the force of gravity and the s...

airship

(Encyclopedia)airship, an aircraft that consists of a cigar-shaped gas bag, or envelope, filled with a lighter-than-air gas to provide lift, a propulsion system, a steering mechanism, and a gondola accommodating pa...

mercury, chemical element

(Encyclopedia)mercury or quicksilver [from the Roman god Mercury], metallic chemical element; symbol Hg [Lat. hydrargyrum=liquid silver]; at. no. 80; at. wt. 200.59; m.p. −38.842℃; b.p. 356.58℃; sp. gr. 13.55...

life

(Encyclopedia)life, although there is no universal agreement as to a definition of life, its biological manifestations are generally considered to be organization, metabolism, growth, irritability, adaptation, and ...