periapsis | (n) (astronomy) the point in an orbit closest to the body being orbited, Syn. point of periapsis, Ant. point of apoapsis, apoapsis |
近点 | [きんてん, kinten] (n, adj-no) (1) near point (closest point at which an object can be brought into focus by the eye); (2) periapsis [Add to Longdo] |