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BNC: 10937 COCA: 12172

proton

noun
/ˈprəʊtɒn/
/ˈprəʊtɑːn/
(physics物理)
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  1. a very small piece of matter (= a substance) with a positive electric charge that forms part of the nucleus (= central part) of an atom质子 see also electron, neutronTopics Physics and chemistryc2
    Word Origin1920s: from Greek, neuter of prōtos ‘first’.
BNC: 10937 COCA: 12172
BNC: 10937 COCA: 12172
BNC: 10937 COCA: 12172
proton
Atoms and parts of atoms: alpha particle, anion, antiparticle...

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