from Wiktionary, Creative Commons Attribution/Share-Alike License
- Alternative spelling of sulfo-.
from the GNU version of the Collaborative International Dictionary of English
- A prefix (also used adjectively) designating sulphur as an ingredient in certain compounds. Cf. thio-.
from The Century Dictionary and Cyclopedia
- n. In chem., a prefix to the name of a compound, signifying the presence in it of sulphur as a constituent. In those cases in which sulphur is looked upon as replacing oxygen the prefix thio- is now generally preferred.
Shortening of sulphur (Wiktionary)