Examples:
1. Not a particle of sense in it.
2. There's a microscopic radioactive particle inside.
3. Lf it's no military secret, how can a sub run on a microscopic particle?
4. But once the reactor's been miniaturized, a microscopic particle should put out enough energy to activate it.
5. That blip we're picking up might only be a radioactive particle.
Definitions of Beta particle:
1. A high-speed electron or positron emitted in the decay of a radioactive isotope