• synonyms


noun Biochemistry.
  1. any of a class of polysaccharides that occur in plants, humus, etc., and form pentoses upon hydrolysis.
Show More

Origin of pentosan

< German (1892), equivalent to Pentos(e) pentose + -an -ane
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for pentosans

Historical Examples of pentosans

  • That portion of the carbohydrates known as pentosans gives rise to furfuraldehyde, one of the important components of caffeol.

    All About Coffee

    William H. Ukers

  • The pentosans, araban and xylan, occur normally in the stems and outer seed coats of many common plants.

    The Chemistry of Plant Life

    Roscoe Wilfred Thatcher

British Dictionary definitions for pentosans


  1. biochem any of a group of polysaccharides, having the general formula (C 5 H 8 O 4) n : occur in plants, humus, etc
Show More

Word Origin for pentosan

C20: from pentose + -an
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