heliacal

heliacal has 2 senses in the JumbleFix dictionary. Letters: 8.

Definitions

• 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.
• a.. 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)"