pentose

/ˈpɛntoʊs/
noun
  1. A type of simple sugar (monosaccharide) that has five carbon atoms in its molecule, found in many plants and in the nucleic acids of living things.
    • In biology class, we learned that a pentose is a sugar with five carbon atoms.
    • Some fruits contain pentose sugars that are less sweet than table sugar.
    • Ribose is a pentose that is a key part of RNA.
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