柯林斯词典proton /ˈprəʊtɒn/ (protons) 1. N-COUNT A proton is an atomic particle that has a positive electrical charge. 質子[技術] 返回 proton剑桥词典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 質子 比較electron neutron 返回 proton