| NOUN | phenomenon | beta ray, beta radiation, electron radiation | radiation of beta particles during radioactive decay |
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| Meaning | Radiation of beta particles during radioactive decay. | |
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| Synonyms | beta radiation, electron radiation | |
| Broader | corpuscular radiation, particulate radiation | A stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all (e.g. neutrons) |
| ionizing radiation | high-energy radiation capable of producing ionization in substances through which it passes | |
| Spanish | radiación beta, rayo beta | |
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