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. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
ketone group
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
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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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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