ˌsəlˈfaˌmīd, ˈsəlfəˌm-, -_mə̇d noun
Etymology: International Scientific Vocabulary sulf- + amide
1.
a. : a crystalline neutral compound SO 2 (NH 2 ) 2 obtainable by treating sulfuryl chloride with ammonia : the amide of sulfuric acid
b. : any of several derivatives of this compound
2. : sulfonamide