Source : Webster's Revised Unabridged Dictionary (1913)

Universalism \U`ni*ver"sal*ism\, n. [Cf. F. universalisme.]
   (Theol.)
   The doctrine or belief that all men will be saved, or made
   happy, in the future state.

Source : WordNet®

universalism
     n : the theological doctrine that all people will eventually be
         saved