Definitions for othmanˈɒθ mən
Random House Webster's College Dictionary
Category: Western History, Peoples
Ref: Ottoman (def. 2). 3
The Nuttall Encyclopedia
the third caliph, who ruled from 614 to 636, was assassinated by Mohammed, son of Abu-Bekr.
or Osman I., surnamed the Conqueror the founder of the empire of the Ottoman Turks, born in Bithynia (1259-1326).