- See under rhatany(def 1).
- either of two South American shrubs belonging to the genus Krameria, of the legume family, K. tiandra (knotty rhatany or Peruvian rhatany) or K. argentea (Brazilian rhatany or Pará rhatany).
- the root of either of these plants, used as an astringent and tonic in medicine and also to color port wine.
Origin of rhatany
1800–10; < New Latin rhatania < American Spanish rataña
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- either of two South American leguminous shrubs, Krameria triandra or K. argentea, that have thick fleshy roots
- the dried roots of such shrubs used as an astringent
Also called: krameria
C19: from New Latin rhatānia, ultimately from Quechua ratánya