n, pl  -nies  1  :  a twining plant of the genus Convolvulus (C. scammonia) of Asia Minor with a large thick root  2 a  :  the dried root of scammony  b  :  a cathartic resin obtained from scammony .
 
 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.