Monoalcohol

Part of speech: noun

Definitions

1. A type of alcohol that contains only one hydroxyl group, making it a simple alcohol with linear or branched chains
2. Referring to a class of organic compounds characterized by the presence of a single alcohol functional group, often used in various applications
3. Describing a molecule that features a single -OH group, distinguishing it from polyalcohols which have multiple such groups

Etymology: "Monoalcohol" is a straightforward chemical coinage rather than a word with a dramatic backstory. It combines "mono-", from Greek "monos" meaning "single" or "alone," with "alcohol," the name chemists gave to the family of compounds built around the hydroxyl (–OH) group attached to a carbon atom. The prefix "mono-" marks the count: one such group per molecule. The term "alcohol" itself has a more colourful path. It comes from Arabic "al-kuḥl," originally a fine powder such as antimony sulphide used as eyeliner, and passed into European chemistry in the early modern period, where it came to name any distilled essence and then, by the eighteenth century, the intoxicating liquid in wine. Chemists later applied the word to the broader class of hydroxyl compounds. "Monoalcohol" is used mainly in chemistry and industry to distinguish single-hydroxyl compounds from diols, triols and other polyhydric alcohols. The exact date of its first recorded use is uncertain.