Zodiac

n.
  1. A girdle; a belt.
    1. An imaginary belt in the heavens, 16° or 18° broad, in the middle of which is the ecliptic, or sun's path. It comprises the twelve constellations, which one constituted, and from which were named, the twelve signs of the zodiac.
    2. A figure representing the signs, symbols, and constellations of the zodiac.