“+...- noun
Etymology: isovaleric International Scientific Vocabulary is- + valeric
: a liquid acid (CH 3 ) 2 CHCH 2 COOH 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, that is made by oxidation of isopentyl alcohol, and that is used chiefly in making esters for use in flavoring materials; β-methyl-butyric acid