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Aldebaran

(Encyclopedia)Aldebaran ălˌdĕbˈərən [key], brightest star in the constellation Taurus; Bayer designation α Tauri; 1992 position R.A. 4h35.5m, Dec. +16°30′. An orange giant star (spectral class K5 III) wit...

Riyadh

(Encyclopedia)Riyadh or Riad both: rēädˈ [key], city (1997 est. pop. 3,000,000), capital and largest city of Saudi Arabia, in the Nejd, central Saudi Arabia. It is situated in an oasis, c.240 mi (390 km) inland ...

Burckhardt, Johann Ludwig

(Encyclopedia)Burckhardt, Johann Ludwig or John Lewis bo͝orkˈhärt [key], 1784–1817, European explorer, b. Switzerland, educated in Germany. Supported by an English association for promoting African discovery,...

Bodleian Library

(Encyclopedia)Bodleian Library bŏdˈlēən, bŏdlēˈən [key], at the Univ. of Oxford. The original library, destroyed in the reign of Edward VI, was replaced in 1602, chiefly through the efforts of Sir Thomas Bo...

Provençal literature

(Encyclopedia)Provençal literature, vernacular literature of S France. Provençal, or Occitan, as the language is now often called, appears to have been the first vernacular tongue used in French commerce and lite...

Avicenna

(Encyclopedia)Avicenna ăvĭsĕnˈə [key], Arabic Ibn Sina, 980–1037, Islamic philosopher and physician, of Persian origin, b. near Bukhara. He was the most renowned philosopher of medieval Islam and the most in...

alphabet

(Encyclopedia)CE5 Examples of letters in various alphabets (arrows indicate the direction of reading) alphabet [Gr. alpha-beta, like Eng. ABC], system of writing, theoretically having a one-for-one relation bet...

Sanusi

(Encyclopedia)Sanusi or Senussi both: səno͞oˈsĭ [key], Arabic Sanusiyya, a political-religious organization in Libya and Sudan founded in Mecca in 1837 by Muhammad bin Ali al-Sanusi (1791–1859), known as the ...

Rigel

(Encyclopedia)Rigel rīˈjəl [key], bright star in the constellation Orion; Bayer designation Beta Orionis; 1992 position R.A. 5h14.2m, Dec. −8°13′. A huge, blue supergiant of spectral class B8 Ia, Rigel has ...

mesquite, in botany

(Encyclopedia)mesquite mĭskētˈ, mĕsˈkēt [key], any plant of the genus Prosopis, leguminous spiny trees or shrubs of the family Leguminosae (pulse family), native to tropical and subtropical regions. The seed ...