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Definition of: ketone
(kē′tōn) noun Chem.
One of a class of reactive organic compounds in which the carbonyl group unites with two hydrocarbon radicals, a single bivalent radical, or derivatives. The simplest member of the class is acetic ketone or acetone. [<G keton <F acétone acetone]
—ke·ton·ic (ki·ton′ik) adjective
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