The Collaborative International Dictionary of English v.0.48:

Gastronome \Gas"tro*nome\, Gastronomer \Gas*tron"o*mer\, n. [F.
   gastronome, fr. Gr. ?, ?, stomach + ? law, ? to distribute.]
   One fond of good living; an epicure. --Sir W. Scott.
   Gastronomic

WordNet (r) 3.0 (2006):

gastronome
    n 1: a person devoted to refined sensuous enjoyment (especially
         good food and drink) [syn: epicure, gourmet,
         gastronome, bon vivant, epicurean, foodie]