flat arch
straight arch

It has a flat arch of 200 foot span.

It has a wide shallow dome which rest on five semidomes, with a flat arch over the entrance portal.

Some people have flat arches in their feet, which can make the feet roll inward when running.

The plan called for three spans in a thin, flat arch over two piers which supports the roadway.

I passed under its flat arch, as if into the midst of the waiting events of my story.

All the windows have flat arches of rubbed brick.

Windows are capped by flat arches of rubbed brick.

It's three flat arches span the River Lagan and it is one of eight bridges in the city.

To the right of the doorway are two two-light windows with flat arches.

The north wall of the chancel contains a two-light window under a flat arch.