Source : Webster's Revised Unabridged Dictionary (1913)

Mohammedanism \Mo*ham"med*an*ism\, Mohammedism \Mo*ham"med*ism\
,  n.
   The religion, or doctrines and precepts, of Mohammed,
   contained in the Koran; Islamism.

Source : WordNet®

Mohammedanism
     n 1: the religion of Muslims collectively which governs their
          civilization and way of life; the predominant religion
          of northern Africa, the Middle East, Pakistan and
          Indonesia [syn: {Islam}, {Islamism}, {Muslimism}, {Muhammadanism},
           {Mohammadanism}]
     2: the monotheistic religion of Muslims founded in Arabia in
        the 7th century and based on the teachings of Muhammad as
        laid down in the Koran; "the term Muhammadanism is
        offensive to Muslims who believe that Allah, not Muhammad,
        founded their religion" [syn: {Islam}, {Islamism}, {Muhammadanism},
         {Muslimism}]