neutrino
/njuːˈtriːnəʊ/noun
(pl. -os)
- a neutral subatomic particle with a mass close to zero and half-integral spin, which rarely reacts with normal matter. Three kinds of neutrinos are known, associated with the electron, muon, and tau particle.中微子。
词源
mid 20th cent.: from Italian, diminutive of neutro 'neutral'.