noun ac·er·tan·nin \ˌasə(r)ˈtanə̇n\

Definition of acertannin

  1. :  a crystalline tannin C20H20O13 found in the leaves of the Amur maple

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Origin and Etymology of acertannin

International Scientific Vocabulary acer- (from New Latin Acer, genus name of Acer ginnala) + tannin; originally formed in German

First Known Use: 1922

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a rounded knoll or a ridge of ice

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