- 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 περί (peri, “near”) + γῆ (gē, “Earth”).