definition of
sulfurous

[1] #1 sulfurous a. [sulphurous] of or related to or containing sulfur or derived from sulfur. wn

[2] #2 sulfurous s. [sultry, stifling, sulphurous] characterized by oppressive heat and humidity; "the summer was sultry and oppressive"; "the stifling atmosphere"; "the sulfurous atmosphere preceding a thunderstorm". wn