ケトFreq.FrequencyTop 100,000Meanings1noun, used as a prefixketo-chemistry›Chemistry prefix derived from ケトン (ketone), used in compound terms such as ケト酸 (keto acid) and ケト体 (ketone body).See also: ケトンケト酸さんは代たい謝しゃに重じゅう要ような役やく割わりを果はたす。Keto acids play an important role in metabolism.ケト