Definition of "metabisulfite" []

• The oxyanion of sulfur S2O52- or any salt containing this ion (noun)

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• "Sulfur dioxide and metabisulfite are not the same thing."
• "With processed foods such as baked goods, snacks, and jam, scan ingredient labels for sulfur dioxide, potassium bisulfite, potassium metabisulfite, sodium bisulfite, sodium metabisulfite, and sodium sulfite."
• "Sulfites (sodium sulfite, sulfur dioxide, sodium or potassium bisulfate, sodium or potassium metabisulfite) - These substances are used as preservatives/antioxidants and are found in: dried, canned, or frozen fruit; wine; beer; maraschino cherries; bakery items; canned shrimp; precut potatoes; olives; and bottled lemon juice."