proton-like particle
nounUK /ˈprəʊ.tɒn.laɪk ˈpɑː.tɪ.kəl/
US /ˈproʊ.tɑːn.laɪk ˈpɑːr.tɪ.kəl/
A tiny piece of matter that is a lot like a proton.
The scientist found a proton-like particle inside the atom smasher.
RELATED WORDS
OTHER MEANINGS
2. A particle with the same charge and spin as a proton but a different mass.
The new proton-like particle had the same charge but a heavier mass.
3. Any particle that behaves like a proton in a nuclear reaction.
Researchers tracked the proton-like particle as it bounced off the target.
4. A theoretical particle predicted by certain models of physics.
The model predicts a proton-like particle that decays very quickly.