heliacal
英[hɪ\'laɪəkəl]
美[hɪ\'laɪəkəl]
基本释义
- adj.
- 太阳的，和太阳同时或几乎同时出没的
英英释义
Adjective
1. pertaining to or near the sun; especially the first rising of a star after and last setting before its invisibility owing to its conjunction with the sun;
"the heliacal rising of the Dog Star"
"the heliacal or Sothic year is determined by the heliacal rising of Sothis (the Egyptian name for the Dog Star)"