Wordnet 3.0
NOUN (1)
1. 
 a colorless toxic flammable liquid used in the synthesis of nylon; 
[syn: furan, furane, furfuran]
WordNet (r) 3.0 (2006):
furan
    n 1: a colorless toxic flammable liquid used in the synthesis of
         nylon [syn: furan, furane, furfuran]