释义 |
perigeanenUK perigeeper·i·gee P0192600 (pĕr′ə-jē)n.1. Astronomy The point in an orbit around the planet Earth where the orbiting body is closest to the planet.2. The analogous point in an orbit around a celestial body other than Earth. Not in technical use. [French périgée, from Medieval Latin perigēum, from Late Greek perigeion : Greek peri-, peri- + Greek gē, earth.] per′i·ge′al (-jē′əl), per′i·ge′an (-jē′ən) adj. EncyclopediaSeeperigee |