Definition

Noun: * An architectural arch that is incomplete at its highest point (the apex), featuring a deliberate gap or opening. This gap is typically filled with a decorative element, such as a keystone, statue, urn, or other ornamental feature.

Usage

• The term is used specifically in architecture and historical building descriptions.
• It describes a structural and aesthetic design choice, not a damaged or faulty arch.
• The defining characteristic is the intentional open space at the top, which is then ornamented.

Examples

• The broken arch above the gate was filled with a carved stone coat of arms.
• In Baroque and Neoclassical architecture, broken arches are often used as pediments over doors and windows.
• The monument featured a broken arch at its crown, where a bronze eagle was placed.

Advanced Usage

• Broken Pediment: A very common application of the broken arch is in the form of a broken pediment, where the triangular or segmental pediment is open at its apex. This is a hallmark of Mannerist, Baroque, and later architectural styles.
  • Example: The library's entrance was crowned by an elaborate broken pediment.

Variants and Related Words

• Segmental Arch: A shallow arch based on a segment of a circle.
• Pediment: The triangular upper part of the front of a building, typically over a portico or door.
• Keystone: The central, wedge-shaped stone at the apex of an arch, which locks the other stones in place. In a broken arch, the keystone may be replaced by a decorative object.

Synonyms

• Interrupted arch
• Open-topped arch

Notes

• A broken arch is a deliberate architectural feature. It should not be confused with an arch that is physically damaged or crumbling.

Noun

1. an arch with a gap at the apex; the gap is usually filled with some decoration