blanc noun3 •A white sauce of fat, broth, and vegetables, used especially for braised meat. •(offensive) A white person; a person of European or Caucasian descent. •A white cosmetic.A guest at a party in 1764 was described as wearing on her face "rather too much yellow mixed with the red; she . . . would look very agreeable if she added blanc to the rouge instead of gamboge." — 2015 formsblancs