from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Either of two South American shrubs (Krameria lappacea or K. argentea) having bilaterally symmetrical flowers, spiny globose fruits, and thick roots.
- n. The dried root of either of these plants, formerly used as an astringent and now used in various dental preparations, such as toothpaste and mouthwash.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The powerfully astringent root of a half-shrubby Peruvian plant (Krameria triandra), used in medicine and to colour port wine.
from the GNU version of the Collaborative International Dictionary of English
- n. The powerfully astringent root of a half-shrubby Peruvian plant (Krameria triandra). It is used in medicine and to color port wine.
from The Century Dictionary and Cyclopedia
- n. See ratany.
American Spanish ratania, possibly from Quechua ratana, to thin, unite.(American Heritage® Dictionary of the English Language, Fourth Edition)
Spanish ratania (Wiktionary)