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ketone
[ kee-tohn ]
noun
, Chemistry.
- any of a class of organic compounds containing a carbonyl group, CO, attached to two alkyl groups, as CH 3 COCH 3 or CH 3 COC 2 H 5 .
adjective
- containing the ketone group.
ketone
/ ˈkiːtəʊn; kɪˈtɒnɪk /
noun
- any of a class of compounds with the general formula R′COR, where R and R′ are alkyl or aryl groups See also acetone
ketone
/ kē′tōn′ /
- Any of a class of organic compounds having the general formula RCOR|||PRIMARY_STRESS|||, where R and R|||PRIMARY_STRESS||| are hydrocarbon radicals that are both attached to the carbon atom of the carbonyl (CO) group. Acetone is a ketone.
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Derived Forms
- ketonic, adjective
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Other Words From
- ke·ton·ic [ki-, ton, -ik], adjective
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Word History and Origins
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Word History and Origins
Origin of ketone1
C19: from German Keton, from Aketon acetone
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Example Sentences
It also acts as a chromogenic centre when double bonds or ethylenic linkages are present, as in fluorene ketone or fluorenone.
From Project Gutenberg
If the groups R and R′ are identical, the ketone is called a simple ketone, if unlike, a mixed ketone.
From Project Gutenberg
The hexoses all contain five alcoholic groups and one primary aldehyde, or one secondary aldehyde (ketone), group.
From Project Gutenberg
Even the common linseed contains a glucoside which breaks up into sugar, prussic acid, and a ketone.
From Project Gutenberg
Ionone, a ketone first prepared by Tiemann, and having when diluted a pronounced violet odour.
From Project Gutenberg
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