Zodiac Definition

A beltlike zone in the sky extending for about eight degrees on either side of the apparent path of the sun and including the paths of the moon and the principal planets: it is divided into twelve equal parts, or signs, each named for a different constellation.
Webster's New World
In astrology, this band divided into 12 equal parts called signs, each 30° wide, bearing the name of a constellation for which it was originally named but with which it no longer coincides owing to the precession of the equinoxes.
American Heritage
A figure or diagram representing the zodiac and its signs: used in astrology.
Webster's New World
A circle or circuit.
Webster's New World
  • constellations
  • groups of planets
  • groups of stars
  • sky signs
  • celestial meridian
  • signs of the zodiac

Other Word Forms of Zodiac



Origin of Zodiac

  • Middle English from Old French zodiaque from Latin zōdiacus from Greek zōidiakos (kuklos) (circle) of the zodiac from zōidion small represented figure, zodiacal sign diminutive of zōion living being zoon

    From American Heritage Dictionary of the English Language, 5th Edition

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