[prair] 
| a wheel or cylinder inscribed with or containing prayers, used chiefly by Buddhists of Tibet. |
| prayer wheel (prâr) n. A cylinder containing or inscribed with prayers or litanies that is revolved on its axis in devotions, especially by Tibetan Buddhists. |
In Buddhism, a cylinder with prayers written on it. The prayer wheel is turned by some worshipers during prayer, or the turning may be used as a substitute for spoken prayers.