氯甲烷 lǜjiǎwán methyl chloride Origin Definitions Defs Strokes Stroke Words Sentences Sents 氯 lǜ noun chlorine chlorine (element Cl); a toxic, yellow-green gas with a strong odor used for bleaching and disinfecting甲烷 jiǎwán methane methane; CH4. A colorless, odorless, flammable gas that is the primary component of natural gas and biogas.