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Petrichor - 365words
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(#11 Aug 6, 2015) Today’s word is petrichor. This is the scientific name for that earthy smell after rain. It was coined in 1964 by two Australian researchers. Based on two Greek words: Petra [stone] and ichor [blood of the gods/immortals]. Plant oils and spores released by bacteria in the soil, react when wet. One compound released is geosmin [earth smell], which is also found in beetroot and carp.
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