Powder trains are used to ignite explosives or other flammable substances. There are several synonyms for powder trains, including fuse, igniter, detonator, and priming cord. Fuses are typically made of a flammable material, such as gunpowder, and are ignited to create a controlled explosion. Igniters are devices that are triggered to cause an explosion. Detonators are commonly used in mining and military operations to initiate the explosion of explosives such as dynamite. Priming cord, also known as blasting cord, is a flexible cord made of explosive material that is used to detonate a larger explosive charge. Each of these synonyms for powder trains serve the same purpose of igniting an explosive or flammable substance.