kwa: a group of African language in the Niger-Congo group spoken from the Ivory Coast east to Nigeria
niger-congo: a family of African language spoken in west Africa
ketone body: a ketone that is an intermediate product of the breakdown of fats in the body; any of three compounds (acetoacetic acid, acetone, and/or beta-hydroxybutyric acid) found in excess in blood and urine of persons with metabolic disorders