methylmalonyl
/ˌmiːθʌɪlˈməlɒnɪl/Chemistry and Biochemistry
adjective
The acyl group derived from methylmalonic acid; especially in methylmalonyl coenzyme A, methylmalonyl CoA, the coenzyme A derivative of methylmalonic acid, which is an intermediate in the metabolism of certain amino acids and fatty acids.
Origin
1950s; earliest use found in Nature: a weekly journal of science. From methylmalon- + -yl.