Conoid

The rebuilding of Oxford Road Station, Manchester […] is progressing steadily, and the conoid roof has recently been erected.

Historic England explained the listing: "The station's unique design employs a high level of sophistication and innovation through its use of conoid shells supported on a cruck-like frame, which not only create a dramatic aesthetic form, but endow the building with a light and spacious interior."

The concourse is roofed with three conoids, ranging in width from 97 ft. 3 in. maximum to 41 ft. 6 in. minimum.

A parabolic conoid is a paraboloid; an elliptic conoid is an ellipsoid.