Buzzword Bingo: Petrichor
Petrichor

related: water, smell, senses

Petrichor = The pleasant smell that accompanies the first rain after a dry spell

The term was coined in 1964 by two CSIRO researchers, Isabel Joy Bear (Australian) and Roderick G. Thomas (British), for an article in the journal Nature.

The word is constructed from Greek, petra, meaning "stone", + ichor, the fluid that flows in the veins of the gods in Greek mythology.

the authors describe how the smell derives from an oil exuded by certain plants during dry periods, whereupon it is absorbed by clay-based soils and rocks. During rain, the oil is released into the air along with another compound, geosmin, a metabolic by-product of certain Actinobacteria, which is emitted by wet soil, producing the distinctive scent

Elsewhere on the Web

27-things-you-didnt-know-about-csiro
http://csironewsblog.com/2015/03/31/the-smell-of-rain-how-our-scientists-invented-a-new-word
http://artshour.podomatic.com/entry/2012-05-30T22_27_48-07_00

Wikipedia

https://en.wikipedia.org/wiki/Petrichor