noun🔗SharePropène, propylène(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. "L'usine chimique produit de grandes quantités de propène, qui est ensuite utilisé pour fabriquer des plastiques.compoundsubstancechemistrymaterialfueltechnicalscienceChat with AIVocabulary GamePractice Reading