The Collaborative International Dictionary of English v.0.48:

Furfurol \Fur"fu*rol\, n. [L. furfur bran + oleum oil.] (Chem.)
   A colorless oily liquid, C4H3O.CHO, of a pleasant odor,
   obtained by the distillation of bran, sugar, etc., and
   regarded as an aldehyde derivative of furfuran; -- called
   also furfural.
   [1913 Webster]