beta particle

1. 1.

   a high-speed electron or positron emitted in the decay of a radioactive isotope

   Broaderparticle

Questions about beta particle

What does beta particle mean?

beta particle means "a high-speed electron or positron emitted in the decay of a radioactive isotope".

Is beta particle a common word?

beta particle is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.