| 单词 | antiparticle |
| 释义 | antiparticle /an"tee pahr'ti keuhl, an"tuy-/, n. Physics. a particle all of whose properties, as mass, spin, or charge, have the same magnitude as but, where appropriate, the opposite sign of a specific elementary particle; neutral pions, photons, and gravitons are considered to be their own antiparticles: The positron is the antiparticle of the electron. Cf. antimatter, annihilation (def. 3). [1930-35; ANTI- + PARTICLE] |
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