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.

A five-carbon monosaccharide. The pentoses ribose and deoxyribose are present in RNA and DNA, respectively.

any monosaccharide sugar containing five atoms of carbon per molecule

Sugar (monosaccharide) with five carbon atoms.

C5H10O5; monosaccharide with five carbon atoms. See also: xylose

Simple sugar (monosaccharide) containing five carbon atoms in the molecule (e.g. xylose, arabinose).

A pentose is a monosaccharide with five carbon atoms.