'C5H10O5' definitions:
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Pentose \Pen"tose\, n. [Penta- + -ose.] (Chem.)
Any of a group of sugars of the formula C5H10O5, such as as
arabinose or ribose; -- so called from the five carbon
atoms in the molecule. They are not fermented by yeast.
[Webster 1913 Suppl.]
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Xylose \Xy"lose\, n. [Pref. xylo- + -ose.] (Chem.)
An unfermentable sugar of the pentose class, C5H10O5,
formed by the hydrolysis of xylan; wood sugar.
[Webster 1913 Suppl.]
