Wordnet 3.0
NOUN (2)
1. 
 any of several alkaloids extracted from the shrub Rauwolfia serpentina; 
2. 
 any shrub or small tree of the genus Rauwolfia having leaves in whorls and cymose flowers; 
 yield substances used medicinally especially as emetics or purgatives or antihypertensives; 
[syn: rauwolfia, rauvolfia]
WordNet (r) 3.0 (2006):
rauwolfia
    n 1: any of several alkaloids extracted from the shrub Rauwolfia
         serpentina
    2: any shrub or small tree of the genus Rauwolfia having leaves
       in whorls and cymose flowers; yield substances used
       medicinally especially as emetics or purgatives or
       antihypertensives [syn: rauwolfia, rauvolfia]