sulpha drug (US sulfa drug)

= sulphonamide.

suicide, suit, suitability, suitable, suitably, suitcase, suite, suited, suiting, suitor, sulfate, sulfur, sulk, sulkily, sulkiness, sulky, sullen, sullenly, sullenness, sully, sulphate (US sulfate), sulphide (US sulfide), sulphur, sulphur (US sulfur), sulphuretted (US sulfuretted), sulphuric (US sulfuric), sulphurous (US sulfurous), sultan, sultana, sultanate, sultrily, sultriness, sultry, sum, sum total, sum up, sum...up, summarily, summarise, summarize,