Definition & Meaning of "voussoir"

What is a "voussoir"?

In architecture, a voussoir is a wedge-shaped stone used to construct an arch or vault. These stones are arranged in a circular pattern, with each voussoir supporting the stones beside it. Voussoirs can vary in size and shape, depending on the design of the arch, and are commonly made from materials like stone or brick. This element not only serves a structural purpose but also adds beauty to architectural designs by creating elegant curves and forms.