Wordnet 3.0
NOUN (1)
1. 
 street names for methylenedioxymethamphetamine; 
[syn: Adam, ecstasy, XTC, go, disco biscuit, cristal, X, hug drug]
WordNet (r) 3.0 (2006):
XTC
    n 1: street names for methylenedioxymethamphetamine [syn:
         Adam, ecstasy, XTC, go, disco biscuit, cristal,
         X, hug drug]