cofactor coextent • Cofane · · · Info · Definitions · Characters · · cofactor · · Text Latin · · Script 8 · · Length Definitions · · · (noun) a substance (as a coenzyme) that must join with another to produce a given result. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 f latin small letter f U+0066 o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074