Rhat"a*ny, Rhat"an*hy (?), n. [Sp. ratania, ratana, Peruv. ratana.]
The powerfully astringent root of a half-shrubby Peruvian plant (Krameria triandra). It is used in medicine and to color port wine.
[Written also ratany
Savanilla rhatany, the root of Krameria Ixina, a native of New Granada.
© Webster 1913.