alpha radiation

Thesaurus

Noun

1.

alpha radiation - the radiation of alpha particles during radioactive decay alpha ray ionizing radiation - high-energy radiation capable of producing ionization in substances through which it passes 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)