Musserin is the name given to a sect of atheists in Turkey. The word signifies those who keep a secret, from the verb aserra, to conceal. Their secret is flatly to deny a deity. Many of the cadis and other educated classes in Turkey are believed to be Musserin. But mainly they are Christian renegades, who, having for pecuniary reasons abjured the faith of their fathers, seek refuge in blank atheism, under a public profession of Mohammedanism.