The Collaborative International Dictionary of English v.0.48:

cellulite \cel"lu*lite`\ (s[e^]l"[u^]*l[imac]t` or
   s[e^]l"[u^]*l[=e]t`), n.
   small lumpy deposits of body fat esp. on women's thighs and
   buttocks. Not used as a technical term.
   [WordNet 1.5]

WordNet (r) 3.0 (2006):

cellulite
    n 1: lumpy deposits of body fat especially on women's thighs
         etc.