英日字典: heliac
The heliac has 1 Senses.
- heliacal, heliac
- 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)"
- 太陽に関連する、または、それの近くで
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