heliacal

[ hi-lahy-uh-kuhl ]
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adjectiveAstronomy.
  1. pertaining to or occurring near the sun, especially applied to such risings and settings of a star as are most nearly coincident with those of the sun while yet visible.

Origin of heliacal

1
1600–10; <Late Latin hēliac(us) (<Greek hēliakós;see heli-1, -ac) + -al1
  • Also he·li·ac [hee-lee-ak]. /ˈhi liˌæk/.

Other words from heliacal

  • he·li·a·cal·ly, adverb

Words Nearby heliacal

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