Source : Webster's Revised Unabridged Dictionary (1913)

Roquefort cheese \Roque`fort" cheese\, or Roquefort
\Roque`fort"\, n.
   A highly flavored blue-molded cheese, made at Roquefort,
   department of Aveyron, France. It is made from milk of ewes,
   sometimes with cow's milk added, and is cured in caves.
   Improperly, a cheese made in imitation of it.

Source : WordNet®

Roquefort
     n : French blue cheese