Petrichor refers to the pleasant, earthy scent produced when rain falls on dry soil.
This distinctive aroma is created by the impact of raindrops releasing compounds from the soil, such as geosmin, a metabolic byproduct of certain bacteria, and plant oils. Petrichor is often associated with nostalgia, tranquillity, and the arrival of rain after a dry spell, evoking a sense of renewal and connection with nature. The word “petrichor” originates from the Greek words “petra” (stone) and “ichor” (the fluid that flows in the veins of the gods in Greek mythology), reflecting the essence of this unique natural phenomenon.