callose

[kal-ohs]

adjective

1. having thickened or hardened spots, as a leaf.

noun

1. callus.

callose

/ ˈkæləʊz /

noun

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

Word History and Origins

Origin of callose¹

1860–65; < Latin callōsus; callous, -ose ¹

Example Sentences

While the fundamental constituent is a cellulose in many Mucorini and other Phycomycetes, in others bodies like pectose, callose, &c., commonly occur, and Wisselingh’s researches show that chitin, a gluco-proteid common in animals, forms the main constituent in many cases, and is probably deposited directly as such, though, like the other substances, it may be mixed with cellulose.

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

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