Have you ever wondered what that sweet moist dust smell you perceive after it must have rained could be called?
Well then, it is called - Petrichor.
Petrichor is the smell of the Earth after rain,especially after the first and last rain.
It is pe-trê-kor (noun)
Sentence example : "Except for the petrichor one could perceive from the dry earth, there was no sign I think had rained".