sulphurous : Idioms & Phrases
Sulphurous acid
- .
(a) Sulphur dioxide. See underSulphur . Obs.(b) An acid,H2SO3 , not known in the free state except as a solution of sulphur dioxide in water, but forming a well-known series of salts (the sulphites).
Webster 1913
Sulphurous anhydride
(Chem.) , sulphur dioxide. See underSulphur .