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[hem-i-sel-yuh-lohs] /ˌhɛm ɪˈsɛl yəˌloʊs/
any of a group of gummy polysaccharides, intermediate in complexity between sugar and cellulose, that hydrolyze to monosaccharides more readily than cellulose.
Origin of hemicellulose
1890-95; hemi- + cellulose Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for hemicellulose
  • Along with cellulose and hemicellulose, these feedstocks all contain a substance called lignin.
  • Liquid wood is made mostly of lignin, one of the three major components of wood, the other two being cellulose and hemicellulose.
  • The group wants to team it with the bacteria that are good at breaking down hemicellulose and using all sugars.
  • hemicellulose is a polysaccharide composed of a variety of sugars including xylose, arabinose, mannose.
  • Plants contain the cellulosic materials cellulose and hemicellulose.
  • In plants, cellulose is protected by a sheath of lignin and hemicellulose.
  • However, the hemicellulose content decreased substantially as temperature increased.
  • hemicellulose is a polysaccharide related to cellulose that comprises ca.
British Dictionary definitions for hemicellulose


any of a group of plant polysaccharides that occur chiefly in the cell wall
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
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hemicellulose in Medicine

hemicellulose hem·i·cel·lu·lose (hěm'ĭ-sěl'yə-lōs', -lōz')
Any of several polysaccharides that are more complex than a sugar and less complex than cellulose and found in plant cell walls.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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