Definition

Noun: * Rowlock arch: An arch constructed with more than one concentric, or layered, ring of wedge-shaped stones (voussoirs). This is a specific architectural and masonry technique that adds structural depth and visual weight to the arch.

Usage

• The term is a technical compound noun used primarily in architecture, masonry, and historical building conservation. It describes a specific construction method for an arch.
• It functions as a countable noun (e.g., , ).

Examples

• The strength of the medieval bridge was due in part to the rowlock arches supporting its span.
• To repair the vault, the masons carefully studied the original rowlock arch construction.
• The architectural drawing specified a rowlock arch for the main gateway.

Advanced Usage

• The term is highly specialized. In non-technical descriptions, it might be referred to more generally as a "multi-ring arch" or "arch with concentric rings," though these are not precise synonyms.
• It is often discussed in contrast to a "single-ring arch" or a "plain arch."

Variants and Related Words

• Arch (n.): A curved structural element that spans an opening and supports weight.
• Voussoir (n.): A wedge-shaped stone or brick used in building an arch.
• Concentric (adj.): Describing circles, arcs, or rings that share the same center.

Synonyms

• Multi-ring arch (descriptive, not a formal technical term)
• Concentric-ring arch (descriptive)

Notes

• There are no common idioms, phrasal verbs, or significant alternative meanings associated with this specific technical compound term. Its meaning is fixed within its architectural context.

Noun

1. an arch that is formed with more than one concentric row of voussoirs