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MDMA

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WordReference Random House Unabridged Dictionary of American English © 2026

MDMA,

Drugsmethylene dioxymethamphetamine: an amphetamine derivative, C₁₁H₁₅NO₂, that reduces inhibitions and that was used in psychotherapy until it was banned in the U.S. in 1985.

Collins Concise English Dictionary © HarperCollins Publishers::

MDMA

3,4-methylenedioxymethamphetamine
Also called (informal): ecstasy

'MDMA' also found in these entries (note: many are not synonyms or translations):

acid house - class A drug - ecstasy

Forum discussions with the word(s) "MDMA" in the title:

MDMA’s 'USA fame' spread across the Atlantic
once administered, MDMA
taking MDMA
the 80% of MDMA

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