1. the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom; [syn: ethyl, ethyl group, ethyl radical]
WordNet (r) 3.0 (2006):
ethyl radical
n 1: the univalent hydrocarbon radical C2H5 derived from ethane
by the removal of one hydrogen atom [syn: ethyl, ethyl
group, ethyl radical]