Oort definition, Oort meaning | English dictionary

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Oort

  

      n   Jan Hendrick. 1900--92, Dutch astronomer, who confirmed (1927) and developed the theory of galactic rotation. He was the first to propose (1950) the existence of a mass of comets orbiting the sun far beyond the orbit of Pluto (the Oort cloud)  
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Oporto, oont, Orton, odor

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