sulphurous (Adjective) — Of or related to or containing sulphur or derived from sulphur.
sulphurous (Adjective) — Harsh or corrosive in tone. ex. "a sulphurous denunciation"
sulphurous (Adjective) — Characterized by oppressive heat and humidity. ex. "the sulphurous atmosphere preceding a thunderstorm" ex. "the summer was sulphurous and oppressive"