Source : Webster's Revised Unabridged Dictionary (1913)

Panpsychism \Pan*psy"chism\, n. [See {Pan-}; {Psychic}.]
   The theory that all nature is psychical or has a psychical
   aspect; the theory that every particle of matter has a
   psychical character or aspect. -- {Pan*psy"chic}, a. --
   {Pan*psy"chist}, n. -- {Pan`psy*chis"tic}, a.

         Fechner affords a conspicuous instance of the
         idealistic tendency to mysterize nature in his
         panpsychicism, or that form of noumenal idealism which
         holds that the universe is a vast communion of spirits,
         souls of men, of animals, of plants, of earth and other
         planets, of the sun, all embraced as different members
         in the soul of the world.                --Encyc. Brit.