methionyl
/mɪˈθʌɪənɪl/ /mɪˈθʌɪənʌɪl/Biochemistry
noun
The aminoacyl group derived from methionine, CH3S(CH2)2CH(NH2)CO.
Origin
1930s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America. From methion- + -yl.