heliacal

形容词 heliacal:

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
   同义词：heliac

he.li.a.cal

adj.（形容词）
Of or relating to the sun, especially rising and setting with the sun.
太阳的，与太阳同时出没的：太阳的，或与太阳有关的，尤指与太阳同升同落的

来源：
From Late Latin hôliacus
源自 后期拉丁语 hôliacus
from Greek hôliakos
源自 希腊语 hôliakos
from hôlios [sun] * see s3wel-
源自 hôlios [太阳] *参见 s3wel-

【引伸】
heli.acally
adv.（副词）