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.