Elements thumb|Dome of the Church of the Assumption in Carcaixent The word "cupola" is another word for "dome", and is usually used for a small dome upon a roof or turret. "Cupola" has also been used to describe the inner side of a dome. The top of a dome is the "crown". The inner side of a dome is called the "intrados" and the outer side is called the "extrados". As with arches, the "springing" of a dome is the base level from which the dome rises and the "haunch" is the part that lies roughly halfway between the base and the top. Domes can be supported by an elliptical or circular wall called a "drum". If this structure extends to ground level, the round building may be called a "rotunda". Drums are also called "tholobates" and may or may not contain windows. A "tambour" or "lantern" is the equivalent structure over a dome's oculus, supporting a cupola.
elements thumb|dome of the church of the assumption in carcaixent the word "cupola" is another word for "dome" and is usually used for a small dome upon a roof or turret "cupola" has also been used to describe the inner side of a dome the top of a dome is the "crown" the inner side of a dome is called the "intrados" and the outer side is called the "extrados" as with arches the "springing" of a dome is the base level from which the dome rises and the "haunch" is the part that lies roughly halfway between the base and the top domes can be supported by an elliptical or circular wall called a "drum" if this structure extends to ground level the round building may be called a "rotunda" drums are also called "tholobates" and may or may not contain windows a "tambour" or "lantern" is the equivalent structure over a dome's oculus supporting a cupola