from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of various carbohydrates containing a ketone group.

from The Century Dictionary.

  • noun A class-name applied in organic chemistry to sugars, such as fructose, containing a ketone group.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biochemistry A saccharide containing a ketone functional group.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun any monosaccharide sugar that contains a ketone group or its hemiacetal


Sorry, no etymologies found.


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  • I had been looking for evidence of proton transfer in enzymes that catalyzed aldose-ketose interconversions.

    Irwin Rose - Autobiography 2005

  • As shown in Table 1, isomerases that are specific for 2R-aldoses were found to activate the 1-R proton of the ketose produced.

    Irwin Rose - Autobiography 2005

  • If now the aldose groups tend to pass over into the starch form, representing a temporary overflow product of the assimilating energy, it would appear that the ketose or levulose groups are preferentially used up in the elaboration of the permanent tissue.

    Researches on Cellulose 1895-1900 C. F. Cross

  • The reason it is a 4 membered ring is because it is a ketose, as opposed to an aldose.

    ScienceBlogs Channel : Life Science 2010


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