HyperDic: heliac

English > 1 sense of the word heliac:
ADJECTIVEpertheliac, heliacalpertaining to or near the sun
English > heliac: 1 sense > adjective 1, pert
Meaningpertaining 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.
Examples
  • "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)"
Synonymheliacal
Nounssunthe star that is the source of light and heat for the planets in the solar system

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