van allen radiation belt

van Al·len ra·di·a·tion belt

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Definitions of van allen radiation belt words

noun van allen radiation belt a broad, doughnut-shaped region surrounding the earth and composed of high-energy electrons and protons trapped in the earth's magnetic field at heights between c. 400 km (c. 250 mi) and c. 64,370 km (c. 40,000 mi) 0
noun van allen radiation belt such a region surrounding other planets, as Jupiter 0
noun van allen radiation belt (astronomy, physics) Either of two torus-shaped areas of high-energy charged particles which partly surround Earth, trapped by its magnetic field. The areas are characterised by intense radiation. When the belts "overload", particles strike the upper atmosphere and fluoresce, causing the polar aurora. 0

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A common word. It’s meaning is known to most children of preschool age. About 85% of English native speakers know the meaning and use the word.

This word is included in each student's vocabulary. Most likely there is at least one movie with this word in the title.

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