Acetylene lamp is a term used to describe a type of light fixture that uses acetylene gas as the fuel source. However, there are many other terms that can be used to refer to this type of lamp. Some synonyms for acetylene lamp include carbide lamp, gas lamp, miner's lamp, acetylene torch, and acetylene lantern. Each term has a slightly different meaning or connotation, but all refer to a device that produces light using acetylene gas. These lamps were popular in the early 20th century, especially among miners and other workers who needed a portable, reliable source of light in the dark. Today, acetylene lamps are still used in some industries, such as welding and construction, but have largely been replaced by electric lighting.