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

alpha radiation

noun
 
/ˈælfə reɪdieɪʃn/
 
/ˈælfə reɪdieɪʃn/
 [uncountable] (physics)
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  1. a type of radiation that comes from some substances when they decay (= start to break down) compare gamma radiationTopics Physics and chemistryc2
See alpha radiation in the Oxford Advanced American Dictionary
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