Cyclopropanol

Part of speech: noun

Definitions

1. A small organic alcohol whose molecule contains a three-membered carbon ring with a hydroxyl group attached to it
2. An alcohol built on a compact triangular ring of three carbon atoms, with an OH group bonded to the ring
3. A chemical compound classed as a cyclopropane derivative in which a hydroxyl group sits directly on the strained three-carbon ring

Etymology: Cyclopropanol is a chemical name built like a Greek-and-Latin compound, and its history is one of systematic naming rather than a story of sense change. The first part, "cyclo-", comes from the Greek "kyklos", meaning circle or ring, and it signals that the carbon atoms form a closed loop. "Propan-" comes from "propionic acid", the three-carbon acid whose name derives from Greek "protos" (first) and "pion" (fat), since it was the first fatty acid of its kind identified. The final "-ol" marks an alcohol, a coinage drawn from "alcohol" itself, which entered English in the 16th century from Arabic "al-kuhl". Put together, the name describes a three-membered carbon ring bearing a hydroxyl group. The specific pattern came from the systematic nomenclature developed by chemists in the late 19th century, most notably at the Geneva conference of 1892, which standardised such names so that a chemist could build the structure from the name alone.