in astronomy, relating to the last setting of a star before and its first rising after invisibility due to alignment with the sun
[via late Latin from Greek hēliakos, from hēlios sun]
| 单词 | heliacal |
| 释义 | heliacal |
| 随便看 |
英语词典包含66266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。