WordWeb Online

1. A Palestinian international terrorist organization that split from the PLO in 1974; has conducted terrorist attacks in 20 countries
   "in the 1980s the Revolutionary Organization of Socialist Muslims was considered the most dangerous and murderous Palestinian terror group";
   - Black September Organization, Fatah Revolutionary Council, Fatah-RC, Abu Nidal Organization, ANO, Arab Revolutionary Brigades, Black September, Abu Nidal Organisation [Brit]

Type of: foreign terrorist organisation [Brit], foreign terrorist organization, FTO, terrorist group, terrorist organisation [Brit], terrorist organization