pentose

[ pen-tohs ]

nounChemistry.

a monosaccharide containing five atoms of carbon, as xylose, C5H10O5, or produced from pentosans by hydrolysis.

Origin of pentose

First recorded in 1890; from German see pent-, -ose²

Words Nearby pentose

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use pentose in a sentence

The time increase was less pronounced in the presence of the three pentose sugars used.
Preservation of Bull Semen at Sub-Zero Temperatures | N. L. VanDemark
It is usual to regard furfural as invariably produced from a pentose residue.
Researches on Cellulose | C. F. Cross
It is composed of one molecule of glucose united to two molecules of rhamnose (methyl pentose, C6H12O5).
The Chemistry of Plant Life | Roscoe Wilfred Thatcher
But most of the natural gums yield a mixture of galactose, some pentose, and some complex organic acid.
The Chemistry of Plant Life | Roscoe Wilfred Thatcher
They bear the same relation to the pentose sugars as do the dextrosans to glucose, etc.
The Chemistry of Plant Life | Roscoe Wilfred Thatcher

British Dictionary definitions for pentose

pentose

/ (ˈpɛntəʊs) /

noun

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

Origin of pentose

C20: from penta- + -ose ²

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

Scientific definitions for pentose

pentose

[ pĕn′tōs′ ]

Any of a class of simple sugars (monosaccharides) having five carbon atoms per molecule. Ribose and deoxyribose are pentoses.

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