O OneWordDaily
AI-generated image
Word of the Day Wednesday, June 10, 2026

apoapsis

/ˌæpoʊˈæpsɪs/ noun · British & US
Valid in UKValid in US
Share WhatsApp

What does apoapsis mean?

noun

The point in the orbit of a celestial body at which it is farthest from the body it is orbiting. In a hyperbolic trajectory, the apoapsis is the point of closest approach to the central body.

Example

"The spacecraft reached its apoapsis and began its journey back towards Earth."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for apoapsis

Antonyms of apoapsis

Rhymes with apoapsis

Etymologically related