- Main Entry:
- sul·fide

- Pronunciation:
-
\ˈsəl-ˌfīd\
- Function:
- noun
- Date:
- 1836
1
: any of various organic compounds characterized by a sulfur atom attached to two carbon atoms
2
: a binary compound (as CuS) of sulfur usually with a more electropositive element or group : a salt of hydrogen sulfide