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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Merriam-Webster unabridged
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Time Traveler for apoapsis
The first known use of apoapsis was in 1876
See more words from the same year