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petrichor

/ˈpɛt.rɪ.kɔːr/
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noun

The pleasant, earthy smell that rises from dry ground when rain begins to fall on it. It is one of the most widely recognized scents in nature, especially strong after a long dry spell.

  • The first monsoon shower filled the air with petrichor.
  • She stepped outside and breathed in the sweet petrichor.
  • Nothing feels more like home than the petrichor after summer rain.

Adinary Nuance

The word was deliberately built from mythology — ichor was the divine, ethereal fluid that ran through the veins of Greek gods instead of blood. By pairing it with petra (stone), Bear and Thomas gave us a name that says: this scent is the life-force of the earth itself, rising from rock when rain touches it. Knowing the origin makes the word feel even more accurate — petrichor is not simply a nice smell, it is something almost sacred bleeding out of the ground. This etymology also explains why the word feels more poetic than scientific, even though it was published in a research journal. It entered popular internet culture in the 2010s precisely because the beauty of its origin matched the beauty of the sensation it names.

In other languages

Vietnamese
mùi đất ẩm
Spanish
olor a tierra mojada
Chinese
雨后泥土香
Japanese
土の香り
Korean
흙냄새

Etymology

Coined in 1964 by Australian scientists Isabel Joy Bear and R.G. Thomas in the journal *Nature*, from Greek *petra* (stone, rock) and *ichor* (the golden fluid said to flow in the veins of the gods in Greek mythology).

Common phrases

the smell of petrichorpetrichor fills the airthe scent of petrichor after rainfresh petrichor

Synonyms

Related words

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Frequently asked questions

How do you pronounce petrichor?
Say it as PET-ri-kor — three syllables, with the stress on the first. The 'ch' is a hard 'k' sound, not like 'church'.
Is petrichor a scientific word or a poetic one?
Both, actually. It was coined in a science journal in 1964, but its Greek roots and beautiful meaning make it feel poetic. Today it is used in both science writing and everyday conversation.
What actually causes petrichor?
The main source is a compound called geosmin, produced by bacteria in the soil. Raindrops hitting dry ground also release tiny oil droplets that have built up during dry weather. Together they create that distinctive earthy scent.
Is petrichor a common English word?
It is not a word you hear in everyday small talk, but it is widely known online and in writing. It went viral in the 2010s because it names a smell almost everyone loves but few had a word for.