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sulfoxide

American  
[suhl-fok-sahyd] / sʌlˈfɒk saɪd /

noun

Chemistry.
  1. a brown liquid, C 1 8 H 2 8 O 3 S, insoluble in water, used as an insecticide synergist.

  2. any of the compounds with the radical =SO, as dimethyl sulfoxide, (CH3 ) 2 SO.


Etymology

Origin of sulfoxide

First recorded in 1890–95; sulf- + oxide

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It’s produced naturally as bacteria do their work on dimethyl sulfoxide waste in sewers.

From Salon • May 31, 2025

It won't scale up to industrial treatment, and it uses dimethyl sulfoxide, or DMSO, but these findings will guide future discoveries about what might work.

From Salon • Aug. 20, 2022

Until 1963, dimethyl sulfoxide was just another liquid solvent used in industry.

From Time Magazine Archive

No new and virtually untested drug has ever been greeted with such optimistic fanfare as dimethyl sulfoxide, or DMSO, a colorless liquid extracted from paper-pulp wastes and commonly used as an industrial solvent.

From Time Magazine Archive