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Definition of beta particle noun from the Oxford Advanced Learner's Dictionary

beta particle

noun
 
/ˈbiːtə pɑːtɪkl/
 
/ˈbeɪtə pɑːrtɪkl/
(also beta ray
 
/ˈbiːtə reɪ/
 
/ˈbeɪtə reɪ/
)
(physics)
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  1. a fast-moving electron that is produced when some radioactive substances decay (= start to break down)
    • the properties of beta particles
    • beta particle emission
See beta particle in the Oxford Advanced American Dictionary
Check pronunciation: beta particle

Nearby words

trait
noun
 
 
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