Wordnet 3.0
NOUN (1)
1. 
 perennial herb native to Europe but naturalized elsewhere having heart-shaped leaves and yellow flowers resembling buttercups; 
 its tuberous roots have been used as a poultice to relieve piles; 
[syn: lesser celandine, pilewort, Ranunculus ficaria]
WordNet (r) 3.0 (2006):
lesser celandine
    n 1: perennial herb native to Europe but naturalized elsewhere
         having heart-shaped leaves and yellow flowers resembling
         buttercups; its tuberous roots have been used as a poultice
         to relieve piles [syn: lesser celandine, pilewort,
         Ranunculus ficaria]