Oort

/ (ɔːt) /

noun

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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Example sentences from the Web for Oort

  • The Dutch scholars, Kuenen and Oort, believe that he wrote none.

    The Bible|John E. Remsburg