Petrichor (noun)
The pleasant, earthy smell that accompanies the first rain after a long period of warm, dry weather.
"After the long summer drought, the petrichor was a welcome reminder of the coming autumn."
The word "petrichor" comes from the Greek words "petra," meaning stone, and "ichor," which in Greek mythology is the fluid that flows in the veins of the gods. The term was coined in the 1960s by Australian scientists who discovered that the scent is caused by an oil exuded by certain plants during dry periods. This oil is absorbed by soil and rocks and then released into the air when it rains, creating the distinctive smell.
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