noun
propane
A gaseous hydrocarbon (C₃H₈) used as fuel. Common in contexts such as gas cylinders, camping stoves, and heating.
キャンプではプロパンガスを使う。
We use propane gas when camping.
プロパンは空気より重い。
Propane is heavier than air.
Butane (C₄H₁₀), another common fuel gas often used in lighters and portable stoves; propane has a lower boiling point and is preferred for cold-weather outdoor use.
Methane (CH₄), the simplest hydrocarbon; main component of natural gas, while propane is a heavier, easily liquefied fuel.
Borrowed from English 'propane', itself from 'propionic acid' + '-ane'.