sulfurous acid

noun

Definition of sulfurous acid

: 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

Recent Examples on the Web 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

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sulfurous acid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sulfurous acid

1790, in the meaning defined above

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Time Traveler for sulfurous acid

Time Traveler

The first known use of sulfurous acid was in 1790

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Dictionary Entries Near sulfurous acid

sulfurous

sulfurous acid

sulfurous anhydride

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Statistics for sulfurous acid

Cite this Entry

“Sulfurous acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sulfurous%20acid. Accessed 7 Dec. 2021.

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More Definitions for sulfurous acid

sulfurous acid

noun

Medical Definition of sulfurous acid

: a weak unstable dibasic acid H2SO3 known in solution and through its salts and used as a reducing and bleaching agent and in medicine as an antiseptic

More from Merriam-Webster on sulfurous acid

Britannica.com: Encyclopedia article about sulfurous acid

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