Perigee



GRE Barron

解释

GRE 红宝书

• n. 近地点
• ［记］ peri ( 周围) ＋gee ( =geo地) -> 周围之地 -> 近地点;
• ［同］ 参考: apogee ( 远地点)

Webster Collegiate

noun

• Etymology: Middle French, from New Latin perigeum, from Greek perigeion, from neuter of perigeios near the earth, from peri- + gē earth
• Date: 1594
• the point in the orbit of an object (as a satellite) orbiting the earth that is nearest to the center of the earth; also the point nearest a planet or a satellite (as the moon) reached by an object orbiting it — compare apogee
• ? perigean adjective

---