Medical Definition of isovaleric acid
: a liquid acid C5H10O2 that has a disagreeable odor, that occurs especially in valerian root in the free state and in some essential oils and marine-animal oils in the form of esters, and that is used chiefly in making esters for use in flavoring materials
Seen and Heard
What made you want to look up isovaleric acid? Please tell us where you read or heard it (including the quote, if possible).