dimethyl sulphoxide

 
Pronunciation: /dʌɪˌmiːθʌɪl sʌlˈfɒksʌɪd, -ˌmɛθ-, -θɪl/
(US dimethyl sulfoxide
, abbreviation: DMSO)

noun

[mass noun] Chemistry
  • a colourless liquid used as a solvent and synthetic reagent. It is readily able to penetrate the skin and is used in medicinal preparations for skin application.
    • Chemical formula: (CH3)2SO