ke·tone / ˈkēˌtōn/ • n. Chem. an organic compound containing a carbonyl group =C=O bonded to two alkyl groups, made by oxidizing secondary alcohols. The simplest such compound is acetone.DERIVATIVES: ke·ton·ic / kēˈtänik/ adj.
ketone Any one of a group of organic compounds that contain the carbonyl group (>C=O) linked to two hydrocarbon groups. The ketone group is a carbonyl group with two single bonds to other carbon atoms (–CO–). Examples are acetone (propanone), CH3COCH3, and methyl ethyl ketone (butanone), CH3COC2H5. See also ketone body.
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