Top Definition
A controversial substance use to ferry drugs across membranes (skin). First prepared by Alexander Saytzeff in 1866, it is now a prescription drug and an industrial solvent. Can be used to transport heroin into the body without injecting it.
Man all ya need is to mix DMSO (dimethyl sulfoxide) with heroin. Instant high!
by phua chu kang July 11, 2005

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