- the point nearest to the earth in the orbit of the moon or of a man-made satellite
- the lowest or nearest point
Origin of perigeeFrench périgée ; from Late Medieval Latin perigaeum ; from Late Greek perigeion ; from Classical Greek perigeios, around the earth ; from peri-, near + gē, the earth
- Astronomy The point in an orbit around the planet Earth where the orbiting body is closest to the planet.
- The analogous point in an orbit around a celestial body other than Earth. Not in technical use.
Origin of perigeeFrench périgée, from Medieval Latin perigēum, from Late Greek perigeion : Greek peri-, peri- + Greek gē, earth.
- per′i·ge′al , per′i·ge′an
- (astronomy) The point, in an orbit about the Earth, that is closest to the Earth: the periapsis of an Earth orbiter.
- (astronomy, more generally) The point, in an orbit about any planet, that is closest to the planet: the periapsis of any satellite.
- (perhaps archaic except astrology) The point, in any trajectory of an object in space, where it is closest to the Earth.
Via Latin perigeum, perigaeum, ultimately from Ancient Greek Ï€ÎµÏÎ¯ (peri, “near") + Î³á¿† (gÄ“, “Earth").