English

Noun

radiation belt ‎(plural radiation belts)

1. (astronomy, physics) A region of high-energy charged particles which partly surrounds a planet or star, trapped by its magnetic field and characterized by intense radiation.
   • 2003, Marshall Cavendish Corporation, How It Works: Science and Technology (3rd ed.), ISBN 9780761473145, p. 1899 (Google preview):

     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.

Derived terms

• Van Allen radiation belt

References

• radiation belt at OneLook Dictionary Search