# electromagnetic

/ˌɪˌɫɛktɹoʊmæɡˈnɛtɪk/ (US) · /ɪlˌɛktɹəʊmɐɡnˈɛtɪk/ (UK) · CEFR B2 · Adjective

Source: https://englishreference.com/word/electromagnetic
Updated: 2026-05-03

## Definition

relating to the way electricity and magnetism work together. It describes energy that travels in waves, like light, radio signals, or X-rays.

For teachers: relating to the interrelation of electric currents or fields and magnetic fields. Describes radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge.

## Examples

- The sun sends electromagnetic waves to Earth.
- Modern smartphones use electromagnetic signals to communicate with cell towers and transmit data wirelessly.
- The entire electromagnetic spectrum includes everything from long-wavelength radio waves to high-frequency gamma rays, though only a small portion is visible to the human eye.

## Usage notes

- Typically placed before the noun it modifies; often used in technical or scientific contexts to describe radiation, waves, or forces.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.