A person claiming to have, or regarded as having, supernatural insight into future or distant events; a clairvoyant; a fortune teller; a crystal…

one who practises second sight, n.

One who possesses, or is alleged to possess, the faculty of clairvoyance. (Often treated as French/klɛrvwajɑ̃/ with feminine clairvoyante/-ɑ̃t/.)

Used of a person. Spiritualism. A person believed to be in contact with the spirits of the dead and to communicate between the living and the…

one who practises the power of second sight.

a person credited with paranormal powers of obtaining knowledge.