| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024he•li•a•cal (hi lī′ə kəl),USA pronunciation adj. [Astron.]- Astronomypertaining to or occurring near the sun, esp. applied to such risings and settings of a star as are most nearly coincident with those of the sun while yet visible.
Also, he•li•ac (hē′lē ak′).USA pronunciation - Greek hēliakós; see heli-1, -ac) + -al1
- Late Latin hēliac(us) (
- 1600–10
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