Apsis definition

Apsis

Topics Apsis Definition

WordNet

(1) A domed or vaulted recess or projection on a building especially the east end of a church; usually contains the altar

WiktionaryText

Via , from . See also .

A recess or projection, with a dome or vault, at the east end of a church; an apse.
Either of the points in the elliptical orbit of a planet or comet where it is closest or furthest from the sun; perihelion or aphelion; an apside