noun arab·i·no·ga·lac·tan \ə-¦ra-bə-ˌnō-gə-¦lak-tən, -ˌtan\

Definition of arabinogalactan



  1. :  a polysaccharide that is found especially in the wood of larch trees (genus Larix) and that yields arabinose and galactose on hydrolysis Supplemental larch comes from the inner bark of the western larch tree and contains arabinogalactans (which are dense sugars) and soluble fiber. — Nicole Bourassa, Natural Health, March 2002 Their review of the literature in the past 25 years found that larch bark arabinogalactan isn't digested, and its main effect is flatulence. — Jocelyn Kaiser, Science, 2 Nov. 2007 —called also arabogalactan Arabinogalactan is used as a dietary supplement.

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Origin and Etymology of arabinogalactan

arabin(ose) + -o- + galactan

First Known Use: 1928

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a brief usually trivial fact

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