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Any of a continuous spectrum of waves propagated by simultaneous oscillation of electric and magnetic fields perpendicular to each other and both perpendicularly to the direction of the propagation of the waves.
Included in the spectrum, in the order of increasing frequency (or decreasing wavelength) are the following types of waves: radio, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
This entry is located in the following unit: electro-, electr-, electri- (page 42)
(telecommunications with electromagnetic waves)