The point in an orbit where an object is farthest from the center of mass it orbits around.
From Greek apo- (away, far) + center (from Latin centrum). Modern astronomical term coined to be the opposite of 'pericenter,' following the apogee/perigee terminology.
Every satellite, moon, and planet has an apocenter—Earth's apocenter from the Sun is called aphelion, Moon's apocenter from Earth is called apogee, and understanding these points was crucial for calculating space probe trajectories.
Complete word intelligence in one call. Free tier — 50 lookups/day.