Definitions for "Pentose"
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.
monosaccharide with 5 carbon atoms. One of the most important pentoses is ribose which is part of the structure of nucleic acids
A sugar with five carbon atoms, such as ribose or deoxyribose.