Glossary definition

Zodiac: Definition, Meaning and Example

Updated August 4, 2026By Zodiac Calendar EditorialReviewed for clarity and sourcing
Quick answer: A band around the ecliptic used in astronomy and divided into signs in astrological systems.
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Use the linked guide for the longer explanation and related examples.

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Key takeaways
  • A band around the ecliptic used in astronomy and divided into signs in astrological systems.
  • Commonly connected with tropical, sidereal, constellations.
  • Its meaning depends on the system and context in which it is used.

Definition

A band around the ecliptic used in astronomy and divided into signs in astrological systems.

Why it matters

The zodiac is a way of organizing positions along the ecliptic. Astrology commonly divides it into twelve 30° signs, while astronomy also uses the term when discussing the constellations along the ecliptic.

Example

The tropical zodiac begins Aries at the March equinox, while sidereal systems use a stellar reference and an ayanamsa.

Common confusion

“Zodiac sign” and “zodiac constellation” are related terms but not identical. Astrological signs are equal 30° divisions; astronomical constellations have unequal boundaries.

Zodiac systems · Zodiac calendar

Editorial note: Astrological meanings on this page describe traditional interpretations. They are not presented as scientifically proven personality facts.

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