Describes a type of physical force or wave that involves both electricity and magnetism working together. Light, radio waves, and X-rays are all forms of electromagnetic waves.
Formed from 'electro-' (relating to electricity) and 'magnetic' (relating to magnets and magnetism). The concept grew in the 19th century when scientists like Faraday and Maxwell showed that electricity and magnetism are two sides of the same phenomenon. The word captures this unified theory in one compound.
The word 'electromagnetic' hides one of science’s biggest plot twists: electricity and magnetism were once seen as separate forces, then suddenly revealed to be one. Even more surprising, visible light is just a tiny slice of the electromagnetic spectrum—so the word includes everything from your Wi‑Fi to gamma rays. Our eyes see almost none of what this word really covers.
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