PERIAPSIS

periapsis

Noun

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


The above text is a snippet from Wiktionary: periapsis
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!