ethane Syllabification: (eth·ane)Pronunciation: /ˈeTHˌān/Definition of ethane noun Chemistry a colorless, odorless, flammable gas that is a constituent of petroleum and natural gas. It is the second member of the alkane series. Chemical formula: C2H6 Origin: late 19th century: from ether + -ane2ethane in other Oxford dictionaries Definition of ethane in the British & World English dictionary
