犬似囊尾蚴：犬复孔绦虫(Dipylidium caninum)之似囊尾蚴首次在犬啮毛虱(Trichodectes)体腔内发现时，曾误冠以此名- sulfanitran
- sulfanuria
- sulfapyridine
- sulfaquinoxaline
- sulfarsphenamine
- sulfasalazine
- Sulfasuxidine
- sulfatase
- sulfate
- sulfatemia
- Sulfathalidine
- sulfathiazole
- sulfatidase
- sulfatide
- sulfazamet
- sulfhemoglobin
- sulfhemoglobinemia
- sulfhydrate
- sulfhydryl
- sulfide
- sulfindigotate
- sulfinic acid
- sulfinpyrazone
- sulfinyl
- sulfisomidine