phenylethylene phenylephrine • phenylglycine · · · Info · Definitions · Synonyms · Characters · · phenylethylene · · Text Latin · · Script 14 · · Length 5 · · Syllables Definitions · · · (noun) a colorless oily liquid; the monomer for polystyrene. Synonyms: styrene, cinnamene, vinylbenzene. · · Noun Definition 1 Synonyms · · · styrene · · Synonym 1 cinnamene · · Synonym 2 vinylbenzene · · Synonym 3 Characters · · e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E p latin small letter p U+0070 t latin small letter t U+0074 y latin small letter y U+0079