sulfurous acid
noun
: a weak unstable dibasic acid H2SO3 known in solution and through its salts and used as a reducing and bleaching agent
Examples of sulfurous acid in a Sentence
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Wiley and his team also studied preservatives such as salicylic acid, sulfurous acid, benzoates, and copper compounds.
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Ben Baumann, IndyStar, 5 Dec. 2025
Otherwise, the sulfur dioxide released from the bubbling lava would turn the watery fluid in your eyes’ mucus membranes into sulfurous acid.
—Sofie Bates, Popular Mechanics, 30 June 2020
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Ben Baumann, IndyStar, 5 Dec. 2025
Otherwise, the sulfur dioxide released from the bubbling lava would turn the watery fluid in your eyes’ mucus membranes into sulfurous acid.
—Sofie Bates, Popular Mechanics, 30 June 2020
Cite this Entry
“Sulfurous acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sulfurous%20acid. Accessed 16 Dec. 2025.
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