arab·​i·​no·​ga·​lac·​tan | \ ə-¦ra-bə-ˌnō-gə-¦lak-tən How to pronounce arabinogalactan (audio) , -ˌtan \
plural arabinogalactans

Definition of arabinogalactan

: 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

Note: Arabinogalactan is used as a dietary supplement.

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First Known Use of arabinogalactan

1928, in the meaning defined above

History and Etymology for arabinogalactan

arabin(ose) + -o- + galactan

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The first known use of arabinogalactan was in 1928

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Cite this Entry

“Arabinogalactan.” Dictionary, Merriam-Webster, Accessed 10 Aug. 2022.

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