ALPHA PARTICLE

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

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

Classified under:

Nouns denoting natural objects (not man-made)

Hypernyms ("alpha particle" is a kind of...):

particle; subatomic particle (a body having finite mass and internal structure but negligible dimensions)

Credits