sulphurous acid
noun
an unstable acid produced when sulphur dioxide dissolves in water: used as a preservative for food and a bleaching agent. Formula: H 2 SO 3
Systematic name: sulphuric(IV) acid
Words nearby sulphurous acid
sulphuretted hydrogen,
sulphuric acid,
sulphurise,
sulphurize,
sulphurous,
sulphurous acid,
sulphuryl,
sulpician,
sultan,
sultana,
sultanate
Example sentences from the Web for sulphurous acid
Though commingled with sulphurous-acid gas, it still had the characteristic smell of steam.
Outlines of the Earth's History |Nathaniel Southgate Shaler