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On the metal surface, PMS and chloride ions (Cl⁻) are activated, producing highly reactive oxidants such as singlet oxygen and hypochlorous acid.—Georgina Jedikovska, Interesting Engineering, 8 Jan. 2026 That stress, which arises from an excess of free radicals and a dearth of anti-oxidants, causes cells to stop working and thus eventually die.—New Atlas, 4 Jan. 2026 Because such oxidants can react with and chemically alter organic compounds, the presence of lightning is of interest to astrobiologists seeking biosignatures on the Red Planet.—Keith Cooper, Space.com, 1 Dec. 2025 The superfood contains compounds that protect DNA by destroying oxidants, and eating a handful a day can help lower the risk of heart attacks, strokes, and other conditions linked to obesity.—Lucy Notarantonio, MSNBC Newsweek, 20 Oct. 2025 See All Example Sentences for oxidant