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callose

[kal-ohs]
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adjective
  1. having thickened or hardened spots, as a leaf.
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noun
  1. callus(def 2).
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Origin of callose

1860–65; < Latin callōsus; see callous, -ose1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for callose

Historical Examples

  • Callose, hardened; or furnished with callosities or thickened spots.

    The Elements of Botany

    Asa Gray

British Dictionary definitions for callose

callose

noun
  1. a carbohydrate, a polymer of glucose, found in plants, esp in the sieve tubes
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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