from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A colorless hygroscopic liquid, (CH3)2SO, obtained from lignin, used as an industrial solvent and in medicine as a penetrant to convey medications into the tissues.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- dimethyl sulfoxide
d(i)m(ethyl)s(ulf)o(xide).(American Heritage® Dictionary of the English Language, Fourth Edition)