radiation belt

noun

A region of high-energy charged particles which partly surrounds a planet or star, trapped by its magnetic field and characterized by intense radiation.

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Meanings

nounradiation belt (plural radiation belts)

plural radiation belts

  1. astronomyA region of high-energy charged particles which partly surrounds a planet or star, trapped by its magnetic field and characterized by intense radiation.

    Radiation belts have been found circling all the planets in the Solar System that have a strong magnetic field, namely Jupiter, Saturn, Uranus, Neptune, and Earth.

    2003, Marshall Cavendish Corporation, How It Works: Science and Technology, 3rd edition, →ISBN, page 1899
Cite this entry
APA

radiation belt. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/radiation%20belt

MLA

“radiation belt.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/radiation%20belt. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “radiation belt,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/radiation%20belt.

Source: radiation belt on Wiktionary, CC BY-SA 4.0.