| Ethyl (n.) A monatomic, hydrocarbon radical, C2H5 of the paraffin series, forming the essential radical of ethane, and of common alcohol and ether. Thesaurus Entries avgas, crude, crude oil, ethyl gas, fossil oil, gas, gasoline, high-octane gas, high-test, kerosene, lead-free gas, low-lead gas, motor oil, paraffin, petrol, petroleum, premium gas, regular, rock oil |