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ephemeris

play
noun, ephem·er·is \-mə-rəs\

Definition of ephemeris

plural ephemerides play \ˌe-fə-ˈmer-ə-ˌdēz\

  1. :  a tabular statement of the assigned places of a celestial body for regular intervals



Origin of ephemeris

Latin, diary, ephemeris, from Greek ephēmeris, from ephēmeros


First Known Use: 1508


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to expose to danger or risk

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