(comparative more apsidally, superlative most apsidally)
- (architecture) With regard to or by means of an apse or apses
- The roof was terminated apsidally.
- (astrophysics) With regard to or in relation to an apsis, the point at which an orbiting object is at its minimum or maximum distance from the orbited object
- The planet's orbit is aspidally aligned with the dust disk.
apsidal + -ly