Electromagnetic radiation

any type of electromagnetic wave (waves composed of undulating electrical fields and magnetic fields)

Electromagnetic (EM) radiation is a self-propagating wave in space with electric and magnetic components. These components oscillate at right angles to each other and to the direction of propagation, and are in phase with each other. Electromagnetic radiation is classified into types according to the frequency of the wave: these types include, in order of increasing frequency, radio waves, microwaves, terahertz radiation, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.
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E·lec·tro·mag·net·ic radiation n. Radiation originating in a varying electromagnetic field, such as visible light, radio waves, x-rays, and gamma [more]Electromagnetic radiation - Community and Resources

Noun
1. radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
(synonym) electromagnetic wave, nonparticulate radiation
(hypernym) radiation
(hyponym) actinic radiation, actinic ray
(part-meronym) photon

Low-energy radiation that comes from the interaction of electric and magnetic fields. Sources include power lines, electric appliances, radio waves, microwaves, and others. Also called electromagnetic field.