heliacal
英 [hɪ'laɪək(ə)l]
美
- heliacal (adj.)
- "pertaining to the sun," c. 1600, with -al (1) and Greek heliakos "of the sun," from helios "sun" (see sol). The heliacal year is reckoned from the heliacal rising of Sirius; thus it also is known as the canicular year.
