radiation belt

noun

, Physics.

1. Van Allen belt.

radiation belt

noun

1. a region in the magnetosphere of a planet in which charged particles are trapped by the planet's magnetic field, an example being the earth's Van Allen belts

Word History and Origins

Origin of radiation belt¹

First recorded in 1955–60

Example Sentences

Juno’s hardware was specially designed to help protect it from the extreme radiation belts created by Jupiter.

From MIT Technology Review

Staying far enough up to maintain orbit, they were close enough to be below the planet's radiation belt.

From Project Gutenberg