| 单词 | pions |
| 释义 | meson /mēˈzon or mesˈon/nounA short-lived subatomic particle of smaller mass than a proton (η-mesons, π-mesons (also called pīˈons), and κ-mesons, k-mesons (also called kāˈons)) ORIGIN: Gr meson neuter of mesos middle mesˈic or mesonˈic adjective mesˈotron noun (after electron; obsolete) Formerly a meson mesic atom or mesonic atom noun A nucleus with an orbital meson pion /pīˈon/nounA pi-meson (see under pi1) pīonˈic adjective |
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