RhymeZone: dimethylfuran definitions

Definitions of dimethylfuran:

noun: (organic chemistry) Any of four isomers of the heterocyclic compound formed by substituting two methyl groups for hydrogen in furan; but especially 2,5-dimethylfuran obtained by catalytic reduction of fructose from biomass for use as a biofuel

(Definitions from Wiktionary)