Definitions

1. adjective

relating to or characteristic of the zodiac, a circle of twelve signs into which the apparent path of the sun, moon, and planets is divided in the ecliptic.

“The zodiacal wheel of the ancient Greeks is a significant astronomical discovery.”

2. adjective

forming part of the zodiac or its constellation.

“The zodiacal light is a faint diffuse glow seen in the night sky.”

3. noun

something that is characteristic of the zodiac or its constellation.

“The zodiacal phenomenon has been observed in many cultures.”