The Collaborative International Dictionary of English v.0.48:

Epicureanism \Ep`i*cu*re"an*ism\, n.
   Attachment to the doctrines of Epicurus; the principles or
   belief of Epicurus.
   [1913 Webster]

WordNet (r) 3.0 (2006):

epicureanism
    n 1: a doctrine of hedonism that was defended by several ancient
         Greek philosophers

Moby Thesaurus II by Grady Ward, 1.0:

34 Moby Thesaurus words for "epicureanism":
   Cyrenaic hedonism, Cyrenaicism, aesthetics, appetite,
   appetitiveness, artistic taste, connoisseurship, dilettantism,
   epicurism, ethical hedonism, eudaemonism, expertise, expertism,
   friandise, gastronomics, gastronomy, gourmandise, hedonic calculus,
   hedonics, hedonism, luxuriousness, luxury, pleasure principle,
   pleasure-loving, pleasure-seeking, psychological hedonism,
   sensualism, sensuality, sensualness, sybaritism, unchastity, virtu,
   virtuosity, voluptuousness