The apse of a little church.Licensed from iStockPhoto
- a semicircular or polygonal projection of a building, esp. one at the east end of a church, with a domed or vaulted roof
- apsis (sense )
Origin: Classical Latin apsis, apsis
Used by arrangement with John Wiley & Sons, Inc.
- Architecture A usually semicircular or polygonal, often vaulted recess, especially the termination of the sanctuary end of a church.
- Astronomy An apsis.
Origin: Variant of apsis.