callose

callose

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

Origin:
1860–65; < Latin callōsus; see callous, -ose1

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World English Dictionary
callose (ˈkæləʊz)
 
n
a carbohydrate, a polymer of glucose, found in plants, esp in the sieve tubes

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