柯林斯詞典elementary particle 1. N any of several entities, such as electrons, neutrons, or protons, that are less complex than atoms and are regarded as the constituents of all matter 基本粒子 (Also called fundamental particle) 返回 elementary particle劍橋詞典one of the most simple parts of all matter , such as an electron , a proton or a neutron 基本粒子 返回 elementary particle