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 (pĕn′tōs′, -tōz′)
Any of a class of monosaccharides having five carbon atoms per molecule and including ribose and several other sugars.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Elements & Compounds) any monosaccharide containing five atoms of carbon per molecule: occur mainly in plants and the nucleic acids
[C20: from penta- + -ose2]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈpɛn toʊs)

a monosaccharide containing five atoms of carbon, as xylose, C5H10O5, or produced from pentosans by hydrolysis.
[< German (1890); see pent-, -ose2]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pentose - any monosaccharide sugar containing five atoms of carbon per molecule
monosaccharide, monosaccharose, simple sugar - a sugar (like sucrose or fructose) that does not hydrolyse to give other sugars; the simplest group of carbohydrates
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The decreased intracellular G6PDG activity in patients of ALL in first attack and recurrence led to little output of products of pentose phosphate cycle and inhibited many reactions of macromolecular synthesis.
These three molecules were nitrogen, a pentose and a phosphate.
"The pentose phosphate pathway team is there on your field,
In the case of fructose, the pancreatic cancer cells used the sugar in the transketolase-driven non-oxidative pentose phosphate pathway to generate nucleic acids, the building blocks of RNA and DNA, which the cancer cells need to divide and proliferate.
In the cell, [6,6-[sup.2][H.sub.2]]-glucose is phosphorylated and converted via the pentose cycle into [5,5-[sup.2][H.sub.2]]-phosphoribose pyrophosphate; this process results in labeled precursor for ribonucleotide synthesis.
The oxidative pentose phosphate pathway in the heart: regulation, physiological significance, and clinical implications.
As you may know, hemicellulases are enzymes that act on hemicellulose, a polymer of pentose sugars.
Foker determined a metabolic pathway, called the pentose phosphate pathway, held the key to maintaining the cellular energy charge, and hence impacting diastolic heart function.
The known by-product compounds found in acid hydrolysate include furfural and 5-hydroxymethyl furfural (HMF) formed from high temperature degradation of pentose and hexose sugars respectively (Larsson et al., 1999; Palmqvist et al., 1999; Taherzadeh et al., 1997, 2000).
This enzyme is part of the pentose phosphate pathway and is dependant on thiamin.
Moreover, this interaction would also impact the pentose phosphate pathway, and control of glutathione red/ox state (4, 5).