Pronunciation: [ pet-ri-kawr, pe-trahy-kawr ]
a pleasant smell that frequently accompanies the first rain after a long period of warm, dry weather.
Origin: 1960; English
Etymology: blend of petro- ‘relating to rocks’ (the smell is believed to be caused by a liquid mixture of organic compounds which collects in the ground) and ichor
smell of the earth
Example: I hope they will get the time and the open space to experience the petrichor in the air.