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apoapsis

noun
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apo·​apsis | \ ¦apō + \
plural apoapses or apoapsides\ " + \

Definition of apoapsis

: the apsis that is farthest from the center of attraction : the high point in an orbit — compare periapsis

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First Known Use of apoapsis

1876, in the meaning defined above

History and Etymology for apoapsis

New Latin, from apo- + apsis

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The first known use of apoapsis was in 1876

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Cite this Entry

“Apoapsis.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/apoapsis. Accessed 25 January 2020.

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