Propane (noun)

1. A flammable hydrocarbon gas of the alkane series, occurring naturally in crude petroleum and used as a fuel and in organic synthesis.
2. A colorless gas, C3H8, that is used as a fuel and a refrigerant and is a component of liquefied petroleum gas.

Origin:

Late 19th century: from pro- (from propionic acid) + -ane.

Examples:

1. The grill was powered by propane.
2. The camping stove was fueled by a small propane tank.
3. The propane heater was used to warm up the room.
4. The propane delivery truck was parked in front of the house.
5. The propane cylinder was used to fuel the torch.