callose

[kal-ohs]

adjective

having thickened or hardened spots, as a leaf.

noun

callus(def 2).

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 of callose

Callose, hardened; or furnished with callosities or thickened spots.
The Elements of Botany
Asa Gray

British Dictionary definitions for callose

callose

noun

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

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