Of or pertaining to mediums (people claiming to contact the dead); relating to or having the ability to communicate with spirits.
1852, E. C. Rogers, Philosophy of Mysterious Agents, Human and Mundane, Boston: Redding, No. 1, p. 88,
Fear of the world, fear of man individually, fear of loss of property or station, would all interfere, and prevent them from giving to their fellow-men, teachings, that their more receptive and mediumistic minds had been capable of receiving.