[ tree-huh-lohs, trih-hah-lohs ]
/ ˈtri həˌloʊs, trɪˈhɑ loʊs /

noun Chemistry.

a white, crystalline disaccharide, C12H22O11, occurring in yeast, certain fungi, etc., and used to identify certain bacteria.


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Origin of trehalose

First recorded in 1860–65; trehal(a) + -ose2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for trehalose

  • The quantity of trehalose in such plants reaches a maximum just before spore formation begins.

    The Chemistry of Plant Life|Roscoe Wilfred Thatcher
  • Trehalose appears to replace sucrose in those plants which contain no chlorophyll and do not elaborate starch.

    The Chemistry of Plant Life|Roscoe Wilfred Thatcher
  • Trehalose seems to serve as the reserve food for fungi in much the same way that sucrose does for higher plants.

    The Chemistry of Plant Life|Roscoe Wilfred Thatcher

British Dictionary definitions for trehalose

/ (ˈtriːhəˌləʊs, -ˌləʊz) /


a white crystalline disaccharide that occurs in yeast and certain fungi. Formula: C 12 H 22 O 11

Word Origin for trehalose

C19: from trehala
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