The Collaborative International Dictionary of English v.0.48:

Edam \E"dam\, n., or Edam cheese \Edam cheese\
   A mild Dutch pressed cheese of yellow color and fine flavor,
   made in balls weighing three or four pounds, and usually
   colored crimson outside; -- so called from the village of
   Edam, near Amsterdam. Also, cheese of the same type, wherever
   made.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

Edam
    n 1: mild yellow Dutch cheese made in balls encased in a red
         covering