sulphurous(s = adj.all)acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, virulent, vitriolic - harsh or corrosive in tone; "a barrage of acid comments"; "a sulfurous denunciation"; "a vitriolic critique"; "an acerbic tone piercing otherwise flowery prose"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "her acrid remarks make her many enemies"
sulphurous(s = adj.all)stifling, sulfurous, sultry - characterized by oppressive heat and humidity; "the stifling atmosphere"; "the sulfurous atmosphere preceding a thunderstorm"; "the summer was sultry and oppressive"
Derived from, or containing, sulphur; specifically, designating those compounds in which the element has a lower valence as contrasted with the sulphuric compounds. [1913 Webster]
Sulphurous acid. (a)Sulphur dioxide. See under Sulphur. [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). --
Sulphurous anhydride(Chem.), sulphur dioxide. See under Sulphur.