Architecture A usually semicircular or polygonal, frequently vaulted recess, especially the cancellation regarding the sanctuary end of a church.
Astronomy An apsis.
A semicircular projection from a building, particularly the curved east-end of a church which has the altar.
The bishop's chair or throne in old churches.
A reliquary, or instance when the relics of saints were held.
The nearest and furthest points to the centre of gravitational attraction for a body in orbit. More generally known as an apsis.
in a few local dialects plus archaic consumption, an aspen tree.
A projecting section of a building, esp. of a church, having in program a polygonal or semicircular termination, and, most often, projecting through the east-end. During the early churches the Eastern apse had been occupied by seating the bishop and clergy.
The bishop's seat or throne, in ancient churches.
A reliquary, or situation in which the relics of saints were held.
. In architecture: purely, any recess, and/or termination of a building, of semicircular program, included in a semicircular vault or semi-dome; thus, a similar feature of polygonal plan.
In ordinary use, the termination associated with the choir or
sanctuary of any church, especially if it gift suggestions a superficial resemblance to an apse in stricter sense, for the reason that its at least roughly semicircular in plan, and vaulted: commonly comparable to chevet, and placed on the altar extremity of a church, even though of rectangular plan and not vaulted, and such as the apse-aisles, chapels, and any other adjunct towards the ritual east end of a church.
. In astronomy, just like apsis.
a domed or vaulted recess or projection on a building especially the east end of a church; often provides the altar