alpha particle

1. 1.

   a positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes

   Broaderparticle

Questions about alpha particle

What does alpha particle mean?

alpha particle means "a positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes".

Is alpha particle a common word?

alpha 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.