Dictionary
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
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First Known Use of SULFUROUS ACID
1790
Medical Dictionary
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
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