butadiene butacaine sulfate • butadiyne · · · Info · Definitions · Characters · · butadiene · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) a gaseous hydrocarbon C4H6; used in making synthetic rubbers. · · Noun Definition 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E t latin small letter t U+0074 u latin small letter u U+0075