Source : Webster's Revised Unabridged Dictionary (1913)

Furfuran \Fur"fu*ran\, n. [L. furfur bran.] (Chem.)
   A colorless, oily substance, {C4H4O}, obtained by distilling
   certain organic substances, as pine wood, salts of pyromucic
   acid, etc.; -- called also {tetraphenol}.

Source : WordNet®

furfuran
     n : a colorless toxic flammable liquid used in the synthesis of
         nylon [syn: {furan}, {furane}]