- a meson having a positive or negative charge and a rest mass 273.13 times that of the electron, or no charge and a rest mass 264.14 times that of the electron
单词 | pion |
释义 | WordReference Random House Unabridged Dictionary of American English © 2024 pi•on (pī′on),USA pronunciation n. [Physics.]
Collins Concise English Dictionary © HarperCollins Publishers:: pion /ˈpaɪɒn/, pi meson n
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