Dome

A roof formed by a series of arches, roughly forming a semicircle. A three-dimensional arch.

An example of a domed roof.

Geodesic Dome

A dome composed of short, straight pieces joined to form triangles; invented by Buckminster Fuller.

Monolithic Dome

A dome composed of a series of arches, joined together with a series of horizontal rings called parallels.

Pendentive

A triangular shape that adapts the circular ring of a dome to fit onto a flat supporting wall.

Tension Ring

A support ring that resists the outward force pushing against the lower sides of a dome.

See also: Arch, Geodesic Dome, Monolithic Dome, Pendentive, Tension Ring.