Isobutanol

Part of speech: noun

Definitions

1. A colorless flammable alcohol with four carbon atoms, used as a industrial solvent and as a potential biofuel
2. A branched four-carbon alcohol that is employed in solvents, coatings, and as an alternative fuel additive
3. An isomer of butanol, a flammable liquid alcohol widely used in manufacturing solvents and in renewable fuel research

Etymology: Isobutanol is a chemical name built from two parts that chemists assembled in a systematic way. The "iso-" prefix marks a branched form of a carbon chain, meaning that the carbon skeleton forks rather than running in a straight line. Attached to "butanol," the four-carbon alcohol, it names the branched variant of that molecule, which differs from its straight-chain relative only in the arrangement of its atoms while sharing the same formula. The word is therefore a technical coinage rather than an old term with a dramatic past. Its meaning follows directly from its parts: "butanol" denotes an alcohol with four carbons, and the "iso-" prefix, borrowed from the Greek "isos" meaning "equal" as used in chemical nomenclature, signals the branched structure. Readers encountering it in fuel or industrial chemistry can read the name as a small set of instructions about the molecule's shape.

Synonyms: isobutyl alcohol