IPA: /hɪˈlaɪ.ə.kəl/
KK: /hɪˈlaɪ.kəl/
This word describes something that is connected to the sun, particularly in relation to its rising and setting.
The heliacal rising of the star marked the beginning of the new year for the ancient Egyptians.
Heliacal → It is formed from "helios" (ἥλιος) (meaning sun) and the suffix "-al" (meaning pertaining to). The word "heliacal" refers to something that is related to or associated with the sun, particularly in terms of its rising or setting.
Think of the word 'helios' which means sun, and remember that 'heliacal' describes something related to the sun.