| 单词 | proton |
| 释义 | proton n. Physics a stable elementary particle with a positive electric charge, equal in magnitude to that of an electron, and occurring in all atomic nuclei. Derivatives protonic adj. Etymology: Gk, neut. of protos first |
| 随便看 |
英语词典包含43808条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。