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elec'tromagnet'ic spec'trum




the entire spectrum, considered as a continuum, of all kinds of electric, magnetic, and visible radiation, from gamma rays having a wavelength of 0.001 angstrom to long waves having a wavelength of more than 1 million km.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

electromagneticselectromagnetic unit
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