periselenium

n. [天]近月点

释义与例句

n.
  1. 1.

    The point of a body's elliptical orbit about the moon's centre of mass where the distance between the body and the centre of mass is at its minimum.

    不可数 天文

词源

From peri- + seleno- + -ium, Latin form of -ion.

来源：wiktionary