The term 'Outback Sprinter' is a job description for an EMU, which stands for Electric Multiple Unit. An EMU is a type of multiple-unit train car powered by electricity, typically used for commuter rail services. Outback Sprinter is a specific type of EMU that is designed to operate in remote areas, such as the Australian Outback. It is capable of traveling long distances over rough terrain and is equipped with features such as air conditioning and comfortable seating.