Etymology: (1520–30; < L sulfurōsus. See sulfur , -ous)
Definition of 'sulfurous'
Princeton's WordNet
1. (adj)sulfurous, sulphurous of or related to or containing sulfur or derived from sulfur
2. (adj)acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent, vitriolic harsh or corrosive in tone "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation"; "a vitriolic critique"
3. (adj)sultry, stifling, sulfurous, sulphurous characterized by oppressive heat and humidity "the summer was sultry and oppressive"; "the stifling atmosphere"; "the sulfurous atmosphere preceding a thunderstorm"
Definitions of sulfurous 
