- the animistic religion of northern Asia, embracing a belief in powerful spirits that can be influenced only by shamans.
- any similar religion.
- the religion of certain peoples of northern Asia, based on the belief that the world is pervaded by good and evil spirits who can be influenced or controlled only by the shamans
- any similar religion involving forms of spiritualism
n.1780, from shaman + -ism. Related: Shamanistic.