1. 
[syn: methylenedioxymethamphetamine, MDMA]
The Collaborative International Dictionary of English v.0.48:
MDMA \MDMA\ n.
   Methylenedioxymethamphetamine, a drug designed to have the
   effects of amphetamines but originally synthesized to avoid
   the drug laws; it is now a controlled substance. It is
   informally called ecstasy. It is used by some abusively and
   illegally without a prescription. [acronym]
   Syn: methylenedioxymethamphetamine, Adam, ecstasy.
        [WordNet 1.5 +PJC]
The Collaborative International Dictionary of English v.0.48:
methylenedioxymethamphetamine \methylenedioxymethamphetamine\ n.
   a drug designed to have the effects of amphetamines but to
   avoid the drug laws, but now a controlled substance. Called
   also MDMA.
   Syn: MDMA, Adam, ecstasy.
        [WordNet 1.5]
WordNet (r) 3.0 (2006):
MDMA
    n 1: a stimulant drug that is chemically related to mescaline
         and amphetamine and is used illicitly for its euphoric and
         hallucinogenic effects; it was formerly used in
         psychotherapy but in 1985 it was declared illegal in the
         United States; "MDMA is often used at parties because it
         enables partygoers to remain active for long periods of
         time" [syn: methylenedioxymethamphetamine, MDMA]