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sulphurous acid
(sul¦phur|ous acid)
noun
[
mass noun
]
Chemistry
an unstable weak acid formed when sulphur dioxide dissolves in water. It is used as a reducing and bleaching agent.
Chemical formula: H
2
SO
3
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Nearby Words
sulphur dioxide
sulphur spring
sulphurated
sulphureous
sulphuretted hydrogen
sulphuric
sulphuric acid
sulphurized
sulphurous
sulphurous acid
Sulpician
sultan
sultana
sultry
sulu
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Sulzberger, Arthur Ochs
sum
sum total