heliacal

/hɪˈlaɪ.ə.kəl/

HꞮLAꞮ · ə · kəl (3 syllables)

English Adj

Definition

Of or relating to the Sun, especially rising and setting with the sun.

Etymology

From Ancient Greek ἡλιακός (hēliakós, “of the sun”) + -al. Appears in English first in the 16th century.