cinnamene cinnamein • cinnamenyl · · · Info · Definitions · Synonyms · Characters · · cinnamene · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) a colorless oily liquid; the monomer for polystyrene. Synonyms: styrene, phenylethylene, vinylbenzene. · · Noun Definition 1 Synonyms · · · styrene · · Synonym 1 phenylethylene · · Synonym 2 vinylbenzene · · Synonym 3 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E