1. Plural of apoapse; the points in an orbit farthest from the body being orbited.
Usage: astronomy; technical

Examples

• The satellite reaches its apoapses twice during each orbital cycle.
• Astronomers calculated the apoapses of the comet's trajectory.
• The spacecraft's apoapses were higher than expected.
• At the apoapses, the planet moves most slowly in its orbit.
• The mission adjusted the orbit to lower the apoapses.