
1) Curved roof of some churches 2) Feature of some apses
Found on
https://www.crosswordclues.com/clue/semidome

• (n.) A roof or ceiling covering a semicircular room or recess, or one of nearly that shape, as the apse of a church, a niche, or the like. It is approximately the quarter of a hollow sphere.
Found on
http://thinkexist.com/dictionary/meaning/semidome/
Sem'i·dome` noun (Architecture) A roof or ceiling covering a semicircular room or recess, or one of nearly that shape, as the apse of a church, a niche, or the like. It is approximately the quarter of a hollow sphere.
Found on
http://www.encyclo.co.uk/webster/S/63

A semidome is a roof or ceiling covering a semi-circular room or recess, or one of nearly that shape, like the apse of a church, a niche, or the like. It is approximately the quarter of a hollow sphere.
Found on
http://www.probertencyclopaedia.com/browse/TS.HTM
No exact match found.