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.
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