<p><strong>Noun</strong></p><ul><li>the zodiac or the Zodiac, an imaginary belt of the heavens, extending about 8° on each side of the ecliptic, within which are the apparent paths of the sun, moon, and principal planets.</li><li>It contains twelve constellations and hence twelve divisions called signs of the zodiac.</li><li>Each division, however, because of the precession of the equinoxes, now contains the constellation west of the one from which it took its name.</li><li>a circular or elliptical diagram representing this belt, and usually containing pictures of the animals, human figures, etc., that are associated with the constellations and signs.</li><li>Informal: sign of the zodiac: I checked out the zodiacs of some of my friends and was surprised at how well the descriptions captured aspects of their personalities.</li><li>a circuit or round.</li></ul>