Electromagnetic energy is a type of energy that is produced by the interaction of electric and magnetic fields. It includes a wide range of phenomena ranging from visible light to radio waves and X-rays. There are several synonyms for the term "electromagnetic energy". One common synonym is "radiant energy". This term refers to energy that travels as waves through space or through a medium, such as air or water. Another synonym is "electromagnetic radiation", which refers to the energy that is emitted or absorbed by charged particles. Other synonyms include "electromagnetic waves", "EM energy", and "EM radiation".