| 单词 | sigma particle |
| 释义 | sigma particlenoun Physics.an unstable hyperon having positive, negative, or zero electric charge and strangeness −1. Symbol: Σ Also called sigma baryon. Origin of sigma particleFirst recorded in 1960–65 Words nearby sigma particlesigla, siglos, sigma, sigma baryon, sigma factor, sigma particle, sigmate, sigmatism, sigmoid, sigmoid artery, sigmoid colon Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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