What is the meaning of Apsidal?

Of, or, pertaining to, the apsides

  1. Of, pertaining to, or in the form of an apse or the apsides
  2. Of or pertaining to an apsis or the apsides

Of, pertaining to, or in the form of an apse or the apsides

Of or pertaining to an apsis or the apsides

apsidal

Source: wiktionary.org