ketone group

noun Chemistry.
the characteristic group occurring in ketones that consists of the carbonyl group attached to two alkyl groups.
Also called ketone radical.
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ketone group
 
n
chem the functional group of ketones: a carbonyl group attached to the carbon atoms of two other organic groups

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
Reducing sugars are distinguished by having a free aldehyde or ketone group.
Compositions wherein the carbonyl group is part of an aldehyde or a ketone group.
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