What does "alpha ray" mean?

A stream of alpha particles: a single ray of alpha radiation.

Alpha ray

Common synonyms include: alpha radiation, beta ray, cathode ray, electron emission, gamma ray, radiorays.

noun

noun ·Rare ·Advanced level

Noun

1
A stream of alpha particles: a single ray of alpha radiation.
"Holonyms: alpha radiation < electromagnetic radiation, EMR < radiation"
2
the radiation of alpha particles during radioactive decay wordnet

"Holonyms: alpha radiation < electromagnetic radiation, EMR < radiation"