Power meter is a term used in the field of sports science to measure the power output of an athlete. There are several synonyms that can be used interchangeably, such as watt meter, energy meter, and output meter. These terms refer to the same device that measures the amount of power generated by an athlete during exercise. A power meter is an essential tool for athletes, coaches, and trainers who want to improve their performance by effectively monitoring their power output. Using a power meter can provide valuable data that can be used to develop training programs, analyze performance, and maximize energy efficiency.