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Defenition of the word halley

    • Defenition of the word halley

      • English astronomer who used Newton''s laws of motion to predict the period of a comet (1656-1742)
      • English astronomer who used Newton's laws of motion to predict the period of a comet (1656-1742)

    Hypernyms for the word halley

      • astronomer
      • stargazer
      • surname
      • uranologist

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