First Known Use: 1958
Dictionary
Van Allen belt
noun Van Al·len belt \van-ˈa-lən-\
Definition of VAN ALLEN BELT
: a belt of intense radiation in the magnetosphere composed of energetic charged particles trapped by the earth's magnetic field; also : a similar belt surrounding another planet
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Origin of VAN ALLEN BELT
James A. Van Allen
Rhymes with VAN ALLEN BELT
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