having thickened or hardened spots, as a leaf.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use callose in a sentence
callose, hardened; or furnished with callosities or thickened spots.The Elements of Botany | Asa Gray
British Dictionary definitions for callose
a carbohydrate, a polymer of glucose, found in plants, esp in the sieve tubes
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