natural gas

Definition

A mixture of gaseous hydrocarbons associated with petroleum deposits; mostly methane with smaller amounts of ethane, propane and butane; principally used as a fuel.

Etymology

By opposition to coal gas (19th century).

Example Sentences

• "For a good many years, beginning in London, Brighton & South Coast days, the station at Heathfield, between Tunbridge Wells and Eastbourne, was lighted by natural gas. The use of this illuminant was discontinued about 1934."
• "Natural gas is an odorless, colorless gas from inside the Earth. When burned, it provides abundant heat to homes and businesses around the United States and the world."