furfural
noun
fur·fu·ral ˈfər-f(y)ə-ˌral 
: a liquid aldehyde C5H4O2 of penetrating odor that is usually made from plant materials and used especially in making furan or phenolic resins and as a solvent
Word History
Etymology
Latin furfur bran + International Scientific Vocabulary -al entry 3
First Known Use
1879, in the meaning defined above
Medical Definition
furfural
noun
fur·fu·ral ˈfər-f(y)ə-ˌral
: a liquid aldehyde C5H4O2 of penetrating odor that is usually made from plant materials and used especially in making furan or phenolic resins and as a solvent