- any of a class of organic compounds containing a carbonyl group, CO, attached to two alkyl groups, as CH3COCH3 or CH3COC2H5.
- containing the ketone group.
- any of a class of compounds with the general formula R′COR, where R and R′ are alkyl or aryl groupsSee also acetone
chemical group, 1851, from German keton, coined in 1848 by German chemist Leopold Gmelin (1788-1853) from German Aketon, from French acétone (see acetone). Its comb. form is keto-.
- Any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals.
- Any of a class of organic compounds having the general formula RCOR′, where R and R′ are hydrocarbon radicals that are both attached to the carbon atom of the carbonyl (CO) group. Acetone is a ketone.