1. (noun) an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m

• radio emission
• radio radiation

1. (noun) an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m

• carrier
• carrier wave
• ground wave
• long wave
• medium wave
• radio signal
• short wave
• sky wave

1. (noun) an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m

• electromagnetic radiation
• electromagnetic wave
• nonparticulate radiation