\Shai"tan\, Sheitan \Shei"tan\, n. [Written also {sheytan}.] [Hind. shait[=a]n, fr. Ar. shai[.t][=a]n.] 1. Among Mohammedans: (a) An evil spirit; the evil one; the devil. (b) One of bad disposition; a fiend. [Colloq.] 2. (Meteor.) A dust storm. [India]