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Definition of Sodium bisulfite
1. Noun. (inorganic compound) The mono sodium salt of sulfurous acid, NaHSO3, used as a food preservative and as a reagent in organic synthesis. ¹
¹ Source: wiktionary.com
Medical Definition of Sodium bisulfite
1. NaHSO3;acid sodium sulfite, used in gastric and intestinal fermentation, externally in the treatment of parasitic diseases, and as an antioxidant in certain injections (s. Metabisulfite). Synonym: sodium hydrogen sulfite, sodium pyrosulfite. (05 Mar 2000)