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Terpene

/ˈtɜːrpiːn/noun

Any of a very large class of aromatic hydrocarbons built from isoprene units, produced above all by conifers.

The Greek roots

τερέβινθος
terébinthos
terebinth tree

Literally: from the terebinth

The story of the word

The name is a clipping of German Terpentin, turpentine, which is where the first ones were distilled, so a Mediterranean tree stands three removes behind a modern chemical class. What a pine wood, a lemon peel or a hop flower smells of is terpenes, and the described count runs past thirty thousand. Chemists later found the whole class is assembled from one five-carbon block, which is why the carbon counts arrive in multiples of ten.

How it travelled
Ancient Greek → Latin → German coinage → English
First recorded
19th century

Same family

turpentineterebinth

In a sentence

Most of what people call the smell of rain in a forest is terpenes coming off warm needles.

Built on the same root

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