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Definition of: furfural
(fûr′fə·ral) noun Chem.
A colorless liquid heterocyclic aldehyde, C5H4O2, obtained by distillation of the pentose sugars occurring in corncobs, oat hulls, and other agricultural waste products: widely used as a solvent and reagent in the dyestuffs, plastics, and other industries. Also fur′fur·ol (-ôl, -ol). [<L furfur bran + AL(DEHYDE)]
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