pink root: Meaning and Definition of

pink' root'

1. a disease of onions and other plants, characterized by pink, withered roots, caused by a fungus, Pyrenochaeta terrestris.

pink•root

1. the root of any of various plants belonging to the genus Spigelia, of the logania family, esp. that of S. marilandica of the U.S., that is used as a vermifuge.
2. any of these plants.