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  1. the bloodroot, Sanguinaria canadensis.
  2. its medicinal rhizome.

Origin of sanguinaria

1800–10; < New Latin (herba) sanguināria bloody (herb), feminine of sanguinārius sanguinary
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sanguinaria

Historical Examples

  • The blood-root (Sanguinaria Canadensis) is of this character.

    Birds and all Nature, Vol. VII, No. 4, April 1900


  • Sanguinaria, the Bloodroot, is named from the blood-like color of its juice.

  • In the first place, you must live in the country, where you can find that early spring flower, the blood-root or sanguinaria.

  • It appears from Morison, that the Sanguinaria was cultivated in this country in 1680, the date of his work.

  • Take podophyllin and sanguinaria, of each ten grains; leptandrin, twenty grains; white sugar, forty grains.

British Dictionary definitions for sanguinaria


  1. the dried rhizome of the bloodroot, used as an emetic
  2. another name for bloodroot (def. 1)

Word Origin

C19: from New Latin herba sanguināria, literally: the bloody herb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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