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pentose

American  
[pen-tohs] / ˈpɛn toʊs /

noun

Chemistry.
  1. a monosaccharide containing five atoms of carbon, as xylose, C 5 H 1 0 O 5 , or produced from pentosans by hydrolysis.


pentose British  
/ ˈpɛntəʊs /

noun

  1. any monosaccharide containing five atoms of carbon per molecule: occur mainly in plants and the nucleic acids

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

pentose Scientific  
/ pĕn′tōs′ /
  1. Any of a class of simple sugars (monosaccharides) having five carbon atoms per molecule. Ribose and deoxyribose are pentoses.


Etymology

Origin of pentose

First recorded in 1890; from German see pent-, -ose 2


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The researchers found that radial glia depend heavily on the pentose phosphate pathway, a metabolic process that uses glucose to make materials needed by cells that are dividing rapidly.

From Science Daily ● Sep. 4, 2026

Figure 3.33 A nucleotide is made up of three components: a nitrogenous base, a pentose sugar, and one or more phosphate groups.

From Textbooks ● Jun. 9, 2022

Each nucleotide is made up of a pentose sugar, a nitrogenous base, and a phosphate group.

From Textbooks ● Jun. 9, 2022

Pen, pentose; Hex, hexose; HexA, corresponding sugar acid. bPairs of saponins with the same chemical formula but different retention times.

From Nature ● Feb. 7, 2017

They bear the same relation to the pentose sugars as do the dextrosans to glucose, etc.

From The Chemistry of Plant Life by Roscoe Wilfred Thatcher

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