sulfoxide

/sʌlˈfɑkˌsaɪd/
noun
  1. A chemical compound containing a sulfur atom bonded to an oxygen atom and two carbon atoms, often used in medicines and industrial processes.
    • Chemists synthesized a new sulfoxide to use as a solvent in the lab.
    • Some pesticides contain sulfoxide compounds that break down quickly in sunlight.
    • The drug works because the sulfoxide group helps it dissolve in the body.