👉 The term "fueller" is commonly used in the context of nuclear power plants. It refers to a process or method for calculating the amount of fuel required for a given reactor cycle, often in conjunction with other factors such as temperature and pressure. The purpose of this calculation is to determine how much fuel is needed to achieve the desired output from the reactor, which can then be used to generate electricity. This is commonly referred to as "fueller efficiency" or "fuel efficiency."