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apsis

play
noun ap·sis \ˈap-səs\

Definition of apsis

plural apsides play \-sə-ˌdēz\

  1. 1 :  the point in an astronomical orbit at which the distance of the body from the center of attraction is either greatest or least

  2. 2 :  apse 2



Origin of apsis

New Latin apsid-, apsis, from Latin, arch, orbit, from Greek hapsid-, hapsis, from haptein to fasten


First Known Use: 1601


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