The Collaborative International Dictionary of English v.0.48:

Saint-Simonian \Saint`-Si*mo"ni*an\, n.
   A follower of the Count de St. Simon, who died in 1825, and
   who maintained that the principle of property held in common,
   and the just division of the fruits of common labor among the
   members of society, are the true remedy for the social evils
   which exist. --Brande & C.
   [1913 Webster]