Electromagnetism (noun)

1. The branch of physics that deals with the interaction between electricity and magnetism.
2. The phenomenon of the interaction between electric charges and magnetic fields.
3. The study of the properties and behavior of electric and magnetic fields.

Origin:

From the greek words "electron" meaning "amber" (referring to the fact that early electromagnetism experiments used amber plates) and "magnet" meaning "magnet". it entered the english language in the 19th century.

Examples:

1. Electromagnetism is one of the four fundamental forces of nature.
2. The principles of electromagnetism are used in many everyday technologies such as electric motors and generators.
3. Electromagnetism plays a crucial role in the functioning of many electronic devices.
4. The study of electromagnetism is central to many fields, including electrical engineering and physics.
5. Electromagnetism is responsible for many phenomena, including the behavior of light and the interaction of charged particles.