the world > matter > chemistry > organic chemistry > hydrocarbons > [adjective] > alkenes (4)
Originally: †derived from ethylene (obsolete). Later: of ethyl; containing an ethyl group.
Resembling ethene in structure or properties; characteristic of ethene; ethylenic.
Of the nature of or relating to an olefin; characteristic of an olefin; spec. designating a double bond between two carbon atoms such as is…