methyl Methuselah • methylacetanilide · · · Info · Definitions · Synonyms · Characters · · methyl · · Text Latin · · Script 6 · · Length 2 · · Syllables Definitions · · · (noun) the univalent radical CH3- derived from methane. Synonyms: methyl group, methyl radical. · · Noun Definition 1 Synonyms · · · methyl group · · Synonym 1 methyl 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 m latin small letter m U+006D t latin small letter t U+0074 y latin small letter y U+0079