ethyl ethrog • ethylamide · · · Info · Definitions · Synonyms · Characters · · ethyl · · Text Latin · · Script 5 · · Length Definitions · · · (noun) the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom. Synonyms: ethyl group, ethyl radical. · · Noun Definition 1 Synonyms · · · ethyl group · · Synonym 1 ethyl radical · · Synonym 2 Characters · · e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C t latin small letter t U+0074 y latin small letter y U+0079