Definitions for "Electromagnetic wave"
A wave composed of two mutually dependent, mutually perpendicular crosswise lying waves of electric and magnetic fields.
A wave produced by the interaction of electric and magnetic fields which vary with time in a regular way. Like all waves they can be described by their wave length or their frequency. Electromagnetic waves all travel at the same speed - the speed of light.
a wave propagating as a periodic disturbance of the electromagnetic field and having a frequency in the electromagnetic spectrum
an open structure and never encloses or subdivides space
Keywords:  radiation, see
See electromagnetic radiation.