WordReference Random House Unabridged Dictionary of American English © 2020
gold•en•seal  (gōldən sēl′),USA pronunciation n. 
  1. Plant Biologya plant, Hydrastis canadensis, of the buttercup family, having a thick yellow rootstock.
  2. Plant BiologyAlso called  hydrastis. the rhizomes and roots of this plant, formerly used in medicine as an astringent and to inhibit bleeding.
  • 1830–40, American., golden + seal1

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