Definition of alpha radiation noun from the Oxford Advanced Learner's Dictionary


alpha radiation

BrE BrE//ˈælfə reɪdieɪʃn//
; NAmE NAmE//ˈælfə reɪdieɪʃn//
[uncountable] (specialist) Energy and physical forces
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a type of radiation which comes from some substances when they decay compare gamma radiation See related entries: Energy and physical forces
See the Oxford Advanced American Dictionary entry: alpha radiation