Main Entry: sul·fa·nil·amide

Pronunciation: \ˌsəl-fə-ˈni-lə-ˌmīd, -məd\

Function: noun

Etymology: sulfanilic acid (C₆H₇NO₃S, from International Scientific Vocabulary sulf- + aniline + -ic) + amide

Date: 1937

: a crystalline sulfonamide C₆H₈N₂O₂S that is the parent compound of most of the sulfa drugs