### Definition of Apsidal

1. Adjective. Of or relating to an apse.

Partainyms: Apse
Derivative terms: Apse

### Definition of Apsidal

1. a. Of or pertaining to the apsides of an orbit.

### Definition of Apsidal

1. Adjective. Of, pertaining to, or in the form of an apse ¹

2. Adjective. (astronomy) Of or pertaining to the apsides ¹

¹ Source: wiktionary.com

### Medical Definition of Apsidal

1. 1. Of or pertaining to the apsides of an orbit. 2. Of or pertaining to the apse of a church; as, the apsidal termination of the chancel. Source: Websters Dictionary (01 Mar 1998)

### Apsidal Pictures

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### Lexicographical Neighbors of Apsidal

 aprosdoketonaprosdoketonsaprosodyaproticaprotininaprotinineaprès-skiaprès-skiingapsaraapsaras apsarasesapseapsesapsidal (current term)apsidallyapsideapsidesapsisapsoapsos aptapt(p)apt.aptableaptameraptamersaptazapineapted

### Literary usage of Apsidal

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Treatise on the Analytic Geometry of Three Dimensions by George Salmon (1882)
"The perpendicular to the tangent plane to the apsidal surface at T lies ... Consider first a radius OT' of the apsidal surface, indefinitely near to 0 T, ..."

2. The Collected Mathematical Papers of Arthur Cayley by Arthur Cayley (1896)
"The apsidal of a given surface is constructed as follows ; considering the section by any plane through the fixed point, and in this section the apsidal ..."

3. A Treatise on Dynamics of a Particle by Edward John Routh (1898)
"Taking the limits to be 0= ±JT to make the apses adjacent, we find that the apsidal angle is (n-2)(n + l) . —24— 428. Closed orbits. ..."

4. Newton's Principia, First Book, Sections I., II., III.: With Notes and by Isaac Newton, Percival Frost (1878)
"Thus, in the ellipse about the centre, the four extremities of the axes are apses; there are two different apsidal distances, and every apsidal angle is a ..."

5. Monuments of the Early Church by Walter Lowrie (1906)
"apsidal MOSAICS OF THE FIFTH AND SIXTH CENTURIES Of the mosaic decoration of S. Paul's, which was executed under Leo I., toward the middle of the fifth ..."

6. A Treatise on the Motion of a Single Particle and of Two Particles Acting on by Archibald Sandeman (1850)
"vectors on opposite sides of the apsidal distance and making equal angles with it, and let a be the inverse apsidal distance. ..."

7. Newton's Principia, Sections I, II, III, with Notes and Illustrations: Also by Percival Frost, Isaac Newton (1863)
"In the ellipse about a focus, the apses are at the greatest and least distances, and the apsidal angle is two right angles. 115. ..."