ケト酸さんMeanings1nounketo acid; oxoacidchemistryA chemical term for an organic acid containing a ketone group. Used in biochemistry and organic chemistry.ケト酸さんは代たい謝しゃ経けい路ろで重じゅう要ような中ちゅう間かん体たいです。Keto acids are important intermediates in metabolic pathways.