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Philidor, François-André Danican

(Encyclopedia)Philidor, François-André Danican, 1726–95, French chess player and composer, b. Dreux. The last in a line of well-known 17th- and 18th-century musicians, he was a celebrated composer, mainly of mo...

round

(Encyclopedia)round, in music, a perpetual canon on a tune that returns to its beginning in which all the voices enter at the unison or the octave. An example is Sumer Is Icumen In. Rounds were popular in 17th-cent...

pyramid, in geometry

(Encyclopedia)CE5 Pyramid pyramid, in geometry, solid figure bounded by a polygon (the base, or directrix) and the surface generated by a moving line (the generator) passing through a fixed point (vertex) and c...

periscope

(Encyclopedia)periscope pĕrˈĭskōp [key] [Gr.,=view around], instrument to enable a person to see objects not in his direct line of vision or concealed by some intervening body. Its essential parts are a tube, p...

Vindhya Range

(Encyclopedia)Vindhya Range vĭnˈdyə [key], chain of hills, c.600 mi (970 km) long, rising to c.3,000 ft (910 m), Madhya Pradesh state, central India. The Vindhya Range has been the historic dividing line between...

Vionnet, Madeleine

(Encyclopedia)Vionnet, Madeleine, 1876–1975, French fashion designer. She worked for Parisian and London dressmakers and designed for the Callot Soeurs and Jacques Doucet houses before opening her own studio in 1...

Wadi Halfa

(Encyclopedia)Wadi Halfa wäˈdē hălˈfə [key], town, N Sudan, on Lake Nubia (Lake Nasser). It is the terminus of a railroad from Khartoum and is the point at which cotton, wheat, livestock, and other goods are ...

Braganza

(Encyclopedia)Braganza brəgänˈzä [key], royal house that ruled Portugal from 1640 to 1910 and Brazil from 1822 to 1889. It took its name from the castle of Braganza or Bragança. The line was descended from Alf...

Beatrix

(Encyclopedia)Beatrix bēˈətrĭks, bē-ăˈtrĭks [key], 1938–, queen of the Netherlands (1980–2013). The oldest daughter of Queen Juliana of the Netherlands and Prince Bernhard of Lippe-Biesterfeld, she rece...

squash tennis

(Encyclopedia)squash tennis, game played on a four-walled court, similar in dimensions to the court on which squash racquets is played. The two games, however, differ in equipment, rules, and play. The squash tenni...