| 单词 | eta-c meson |
| 释义 | eta-c meson[ ey-tuh-see, ee-tuh- ] / ˈeɪ təˈsi, ˈi tə- / noun Physics.a neutral meson having a mass 5832 times that of the electron and a mean lifetime of approximately 3.1 × 10-22 seconds. Also called eta-c particle. Words nearby eta-c mesonesurient, E. Sussex, et, eta, Eta Carinae, eta-c meson, eta-c particle, etaerio, étagère, e-tail, e-tailing Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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