[{"Bold_text": "adjective", "List Items": ["containing the ethylene group ethylene group."]}, {"Bold_text": "noun", "List Items": ["Also called ethene , olefiant gas olefiant gas.a colorless, flammable gas, C2H4, having a sweet, unpleasant odor and taste, the first member of the ethylene series ethylene series,usually obtained from petroleum and natural gas: used as an agent to improve the color of citrus fruits, in the synthesis of polyethylene , ethylene dibromide ethylene dibromide, ethylene oxide ethylene oxide,and other organic compounds, and in medicine chiefly as an inhalation anesthetic."]}]