sulphoxide Chem.
(sʌlˈfɒksaɪd)
[f. sulph- + oxide.]
Any compound containing a hydrocarbon radical combined with the group SO.
| 1894 Muir & Morley Watts' Dict. Chem., Sulphoxides, organic compounds R.SO.R{p} formed by the action of conc. HNO3 on sulphides. Ibid. s.v., Sulphoxides containing monovalent alcohol radicles form unstable compounds with HNO3. |