noun🔗SharePropen, Propylen(official IUPAC name) The organic chemical compound propylene. An alkene which is a colorless gaseous (at room temperature and pressure) hydrocarbon with the chemical formula C3H6."The chemical plant produces large quantities of propene, which is then used to make plastics. "Das Chemiewerk produziert große Mengen an Propen, das dann zur Herstellung von Kunststoffen verwendet wird.compoundsubstancechemistrymaterialfueltechnicalscienceChat with AIVocabulary GamePractice Reading