0 a part at the top of a tower or building that is round in the middle and has a point at the top, similar in shape to an onion:
The blue and white chapel is capped by an onion dome made of sheet metal.
The trademark onion domes of Russian churches decorate labels for chocolate bars and dumplings.
The distinctive onion domes of the Russian Orthodox Alexander Nevsky Cathedral dominate Toompea Hill.
Beyond them hovers a female figure, in front of a richly decorated temple with an onion dome.
There are three octagonal spires, each lighted by eight windows, with an onion dome roof and a metal cross on top.
It features gabled and hipped roofs and a central octagonal cupola and onion dome.
The cruciform style uses an equidistant cruciform pattern with a structural central onion dome, and gabled roofing over each cruciform section.
The building once featured an onion dome, but this was removed sometime in the 20th century.
