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Definition of Heliacal
1. Adjective. 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 or Sothic year is determined by the heliacal rising of Sothis (the Egyptian name for the Dog Star)"
Definition of Heliacal
1. a. Emerging from the light of the sun, or passing into it; rising or setting at the same, or nearly the same, time as the sun.
Definition of Heliacal
1. Adjective. Of or relating to the sun, especially rising and setting with the sun. ¹
¹ Source: wiktionary.com
Definition of Heliacal
1. pertaining to the sun [adj]
Medical Definition of Heliacal
1.
Lexicographical Neighbors of Heliacal
Literary usage of Heliacal
Below you will find example usage of this term as found in modern and/or classical literature:
1. The New American Cyclopaedia: A Popular Dictionary of General Knowledge by George Ripley, Charles Anderson Dana (1860)
"In astronomy, the heliacal rising of a star is its rising just before sunrise ;
the heliacal setting is setting just after sunset. ..."
2. The Indian Calendar: With Tables for the Conversion of Hindu and Muhammadan by Robert Sewell, Śaṅkara Bālakr̥shṇa Dīkshita (1896)
"The year is purely lunar, and the month begins with the first heliacal ...
Since the Muhammadan year invariably begins with the heliacal rising of the moon, ..."
3. Hand-books of Natural Philosophy and Astronomy by Dionysius Lardner (1854)
"Thence it is carried in a straight direction through the centre of the helix to
the other extremity, from whence it is again conducted in heliacal coils ..."
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