Speakur

Word Pronunciation & Dictionary

apoapsis

Word Rarity Very rare

Frequency: 1.19 in modern English

Syllables
apoap-sis
IPA
12
Scrabble Score
8
Letters
2
Syllables
5
Unique Chars

Meaning

noun

The point of a body's elliptical orbit about the system's centre of mass where the distance between the body and the centre of mass is at its maximum.

Etymology

Etymology tree Proto-Indo-European *h₂ep Proto-Indo-European *-o Proto-Indo-European *h₂epó Proto-Hellenic *apó Ancient Greek ᾰ̓πό (ăpó) Ancient Greek ᾰ̓πο- (ăpo-)bor. English apo- English apsis English apoapsis From apo- + apsis.

Inflected Forms

apoapsides (plural) apoapsises (plural) apoapses (plural) apapsis (alternative)

Frequently Paired Words

apastron aphelion apoareion apocenter apocynthion apocytherion apogalacticon apogee

Synonyms

apocenter apoapse point of apoapsis

Antonyms

periapsis

Questions

What does apoapsis mean?
The point of a body's elliptical orbit about the system's centre of mass where the distance between the body and the centre of mass is at its maximum.
Where does apoapsis come from?
Etymology tree Proto-Indo-European *h₂ep Proto-Indo-European *-o Proto-Indo-European *h₂epó Proto-Hellenic *apó Ancient Greek ᾰ̓πό (ăpó) Ancient Greek ᾰ̓πο- (ăpo-)bor. English apo- English apsis English apoapsis From apo- + apsis.

How to pronounce apoapsis

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