Final answer:
A cyclic process is one in which the system returns to its original state at the end of the cycle, without any changes in state properties such as temperature, pressure, volume, and internal energy.
Step-by-step explanation:
A process undergoes a cyclic process when the system returns to its original state at the end of the cycle. This means that the state properties of the system, such as temperature, pressure, volume, and internal energy, do not change over a complete cycle. For example, if you have a gas confined in a cylinder and the gas undergoes a cycle of compression, expansion, and then returns to its original state, it is considered a cyclic process.