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天火字典

英日字典: heliacal



The heliacal 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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