Dictionary.com
Thesaurus.com

Roquefort vs. blue cheese

Roquefort
[rohk-fert] / ˈroʊk fərt /
Trademark.

  1. a strongly flavored cheese, veined with mold, made of sheep's milk and ripened in caves at Roquefort, a town in S France.

blue cheese

noun

blue cheeses plural

  1. a rich cheese in which the internal mold manifests itself in blue veins: made in France especially from sheep's milk and elsewhere also from cow's milk and goat's milk.