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/Ëpet.rÉª.kÉËr/ /Ëpet.rÉª.kÉËr/ specialized. âº the smell produced when rain falls on dry ground, usually experienced as being pleasant. (Definition of âpetrichorâ from the Cambridge Advanced Learner's Dictionary & Thesaurus Â© Cambridge University Press)
petrichor (uncountable) The distinctive scent which accompanies the first rain after a long warm dry spell. 2010, Val Panesar, For the Sake of the Future: Though it had yet to begin raining, the familiar smell of petrichor appeared to be already present and Neelam suddenly wished she was sitting at home with a nice cup of tea and a good book. The yellow organic oil that yields this scent. 1980, John E Bardach et al., Fish Behavior and its Use in the Capture and Culture of Fishes: He hypothesizes that this factor may be petrichor, an oil which has been isolated from silicate minerals and rocks [...]. Translations