Definition of zodiac noun from the Oxford Advanced Learner's Dictionary

     

    zodiac

     noun
    noun
    BrE BrE//ˈzəʊdiæk//
     
    ; NAmE NAmE//ˈzoʊdiæk//
     
     
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  1. 1the zodiac [singular] the imaginary area in the sky in which the sun, moon and planets appear to lie, and which has been divided into twelve equal parts each with a special name and symbol the signs of the zodiac
  2. 2[countable] a diagram of these twelve parts, and signs that some people believe can be used to predict how the planets will influence our lives
  3. Word Origin late Middle English: from Old French zodiaque, via Latin from Greek zōidiakos, from zōidion ‘sculptured animal figure’, diminutive of zōion ‘animal’.
See the Oxford Advanced American Dictionary entry: zodiac