See Also: apse(dictionary)
apse(encyclopedia)
apse(dictionary)

apse (iou)



apse noun. [aps] E19.
[formed as APSIS.]
Astronomy. = APSIS noun 2. E19.
Architecture. A large semicircular or polygonal structure, often roofed with a semi-dome, situated esp. at the end of the choir, nave, or an aisle of a church. M19.