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radio radiation

n. an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m [syn: radio wave, radio emission]

Usage examples of "radio radiation".

Organisms throughout the universe should therefore be sensitive to optical and/or radio radiation, and, after the development of physics, the idea of electromagnetic radiation for interstellar communication should be a cosmic commonplace-a convergent idea evolving independently on countless worlds throughout the galaxy after the local discovery of elementary astronomy, what we might call the facts of life.