saccharinEnglishOxford New American Dictionarysaccharin /ˈsak(ə)rən, ˈsæk(ə)rən / ▸ noun a sweet-tasting synthetic compound used in food and drink as a substitute for sugar. Alternative name: o -sulfobenzoic imide; chemical formula: C7H5NO3S. – ORIGIN late 19th century : from modern Latin saccharum ‘sugar’ + -in1.