| 单词 | mu meson |
| 释义 | mu meson in British English (mjuː) noun a former name for muon muon in British English (ˈmjuːɒn) noun a positive or negative elementary particle with a mass 207 times that of an electron and spin 1⁄2. It was originally called the mu meson but is now classified as a lepton Derived forms muonic (mjuːˈɒnɪk) adjective Word origin C20: short for mu meson |
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