Basic Guidelines For English Spellings
READ THESE ARTICLES
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.
1950s; earliest use found in Nature: a weekly journal of science. From methylmalon- + -yl.