in Islmic myth, an unbelieving class of jinn (`spirits`); it is also the name of Ibls, the devil, when he is performing demonic acts.[2 related articles] Found on http://www.britannica.com/eb/a-z/s/74
Shai'tanShei'tan noun [ Written also sheytan .] [ Hind. shaitān , from Arabic shaitān .] 1. Among Mohammedans: (a) An evil spirit; the evil one; the devil. (b) One of bad disposition; a fiend. [ Colloq.] 2. (... Found on http://www.encyclo.co.uk/webster/S/80