Definition

Noun: 1. Electromagnetic radiation in the radio frequency range: "Radio radiation" refers specifically to electromagnetic waves with wavelengths between approximately 0.5 centimeters and 30,000 meters (or frequencies between about 10 kHz and 300 GHz). This type of non-ionizing radiation is used for communication technologies like broadcasting, mobile phones, and radar.

Usage Examples

• Noun:
  • Astronomers study radio radiation from distant galaxies to learn about their composition.
  • The antenna is designed to transmit and receive radio radiation efficiently.
  • Exposure to high levels of certain radio radiation can heat biological tissue.

Advanced Usage

• "Cosmic radio radiation": Refers to natural radio waves originating from astronomical sources in space, such as pulsars or cosmic microwave background radiation.
  • The discovery of cosmic radio radiation opened a new window for observational astronomy.

Variants and Related Words

• Radio wave (n): A more common synonym for a single emission or a type of radio radiation.
  • Radio waves are a form of radio radiation.
• Radio frequency (RF) radiation (n): A technical term often used interchangeably with "radio radiation," emphasizing the frequency range.
• Electromagnetic radiation (n): The broader category that includes radio radiation, along with visible light, X-rays, etc.

Synonyms

• Radio waves
• RF emission
• Hertzian waves (a historical term)

Related Phrases

• Radio frequency spectrum: The entire range of frequencies used for radio radiation.
  • Governments regulate the use of the radio frequency spectrum.
• Source of radio radiation: An object or device that emits these waves.
  • A quasar is a powerful source of radio radiation.

Noun

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