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rattlesnake root

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noun
  1. any of certain composite plants of the genus Prenanthes, whose roots or tubers have been regarded as a remedy for snake bites, as P. serpentaria or P. alba.
  2. the root or tuber.
  3. the snakeroot, Polygala senega.
  4. its root.
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Origin of rattlesnake root

First recorded in 1675–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018