1. The monotheistic religious system 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";
   - Islam, Islamism, Mohammedanism [archaic], Muslimism

Type of: faith, monotheism, organised religion [Brit], organized religion, religion

Encyclopedia: Muhammadanism