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mannan

American  
[man-an, -uhn] / ˈmæn æn, -ən /

noun

Biochemistry.
  1. any of a group of polysaccharides, found in the ivory nut, carob bean, and the like, that yield mannose upon hydrolysis.


Etymology

Origin of mannan

First recorded in 1890–95; mann(ose) + -an