protonnoun [ C ]
uk/ˈprəʊ.tɒn/us/ˈproʊ.t̬ɑːn/a type of elementary particle (= a very small piece of matter) with a positive electrical charge that is found in the nucleus of all atoms
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electron
neutron
Thesaurus: synonyms and related words
Physics: atoms, molecules & sub-atomic particles
- acceptor
- anion
- antilepton
- antimatter
- antineutrino
- antiparticle
- disaccharide
- elementary particle
- intramolecular
- ion
- ionize
- lepton
- Lewis structure
- macromolecule
- neutron
- quark
- relative molecular mass
- strong force
- subatomic particle
- subunit
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