cupola
Pronunciation:
/ˈkjuːpələ/noun
Definitions
A dome-shaped ornamental structure located on top of a larger roof or dome.
A small turret, usually on a hatch of an armoured fighting vehicle.
An upward-projecting mass of plutonic rock extending from a larger batholith.
A solid formed by joining two polygons, one (the base) with twice as many edges as the other, by an alternating band of isosceles triangles and rectangles.