As nouns,
club drug is a hypernym of
methylenedioxymethamphetamine; that is,
club drug is a
word with a broader meaning than
methylenedioxymethamphetamine:
- methylenedioxymethamphetamine: 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
- club drug: a controlled substance that is usually taken by young people at dance clubs and raves