A dome (frae Laitin: domus) is an airchitectural element that resembles the hollae upper hauf o a sphere. The precise defineetion haes been a matter o controversy. Thare are an aa a wide variety o forms an specialised terms tae descrive them. A dome can rest upon a rotunda or drum, an can be supportit bi columns or piers that transeetion tae the dome throu squinches or pendentives. A lantern mey cover an oculus an mey itsel hae anither dome.