1. A hemispherical roof.
2. A stadium that has a roof; SYN. domed stadium, covered stadium.

1. To cover with a dome
2. To form into a dome
3. To swell upward or outward like a dome

In architecture, roof form which is usually hemispherical and constructed over a circular, square, or octagonal space in a building. A feature of Islamic and Roman architecture, the dome was revived during the Renaissance.
The dome first appears in Assyrian architecture, later becoming a feature of Islamic mosques (after the notable example in the Byzantine church of Hagia Sophia, Istanbul AD 532–27) and Roman ceremonial buildings: the Pantheon in Rome, about AD 112, is 43.5 m/143 ft in diameter. Rediscovered during the Renaissance, the dome features prominently in Brunelleschi's Florence Cathedral 1420–34, Bramante's Tempietto at San Pietro in Montorio, Rome, 1502–10, and St Peter's, Rome, 1588–90, by Giacomo della Porta (about 1537–1602). Other notable examples are St Paul's, London, 1675–1710, by Christopher Wren, and the Panthéon, Paris, 1757–90, by Jacques Soufflot 1713–80. In the 20th century Buckminster Fuller has developed the geodesic dome (a type of space-frame).

A geologic feature that is the reverse of a basin. It consists of anticlinally folded rocks that dip in all directions from a central high point, like an inverted but usually irregular cup.
Such structural domes are the result of pressure acting upward from below to produce an uplifted portion of the crust. Domes are often formed by the upwelling of plastic materials such as salt or magma. The salt domes along the North American Gulf Coast were produced by upwelling ancient sea salt deposits, while the Black Hills of South Dakota are the result of structural domes pushed up by intruding igneous masses.