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electromagnetic wave

The definition of an electromagnetic wave is one that moves by the power of electric and magnetic fields.

(noun)

An example of an electromagnetic wave is what provides the power in a microwave.

See electromagnetic wave in Webster's New World College Dictionary

a wave propagated through space or matter by oscillating electric and magnetic fields: in a vacuum it travels at the speed of light

See electromagnetic wave in American Heritage Dictionary 4

noun

A wave of energy having a frequency within the electromagnetic spectrum and propagated as a periodic disturbance of the electromagnetic field when an electric charge oscillates or accelerates.

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