Source : Webster's Revised Unabridged Dictionary (1913)

Styrolene \Sty"ro*lene\, n. (Chem.)
   An unsaturated hydrocarbon, {C8H8}, obtained by the
   distillation of storax, by the decomposition of cinnamic
   acid, and by the condensation of acetylene, as a fragrant,
   aromatic, mobile liquid; -- called also {phenyl ethylene},
   {vinyl benzene}, {styrol}, {styrene}, and {cinnamene}.

Source : WordNet®

styrene
     n : a colorless oily liquid; the monomer for polystyrene [syn: {cinnamene},
          {phenylethylene}, {vinylbenzene}]