DMSO

noun

ˌdē-ˌem-ˌes-ˈō How to pronounce DMSO (audio)
: dimethyl sulfoxide

Word History

First Known Use

1964, in the meaning defined above

Time Traveler
The first known use of DMSO was in 1964

Browse Nearby Words

D minor
DMSO
DMT
See all Nearby Words

Cite this Entry

“DMSO.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/DMSO. Accessed 5 Jul. 2026.

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