sulfonamide

== English == === Alternative forms === sulphonamide === Etymology === From sulfon(ic acid) + amide. === Pronunciation === === Noun === sulfonamide (plural sulfonamides) (American spelling; IUPAC spelling) (chemistry) Any amide of a sulfonic acid RS(=O)2NR'2 (pharmacology) Any of a group of antibiotics; a sulfa drug ==== Derived terms ==== ==== Translations ====