<human>:  What is the definition of electromagnetic radiation?
<bot>: Electromagnetic radiation is a form of energy that travels in the form of waves or particles in the form of electromagnetic fields through space and may also be referred to as electromagnetic energy. It is known to have properties of both an electric field and a magnetic field and consists of many different types of energy, including radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, and x-rays.