WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / R / radio radiation radio radiation noun 15 letters Scrabble 16 WWF 17 Definitions noun an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m radio emissionradio wave Look “radio radiation” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →