Definition

Noun: * An arch formed in a continuous curve; characteristic of Roman architecture: A round arch is a structural element with a semicircular or nearly semicircular shape, forming a continuous, smooth curve from one supporting point (impost) to the other. This design is a hallmark of classical Roman architecture.

Examples of Usage

• Noun:
  • The ancient aqueduct was supported by a series of massive round arches.
  • Romanesque architecture is known for its use of the solid, heavy round arch.
  • The doorway was topped with a simple but elegant round arch.

Advanced Usage

• Structural principle: The round arch works by transferring the weight above it outward and downward to its supports through compression along the curve of the arch stones (voussoirs).
• Historical context: While characteristic of Roman architecture, the round arch was also widely used in later architectural styles, such as Romanesque, before the development and adoption of the pointed Gothic arch.

Variants and Related Words

• Roman arch: A direct synonym for a round arch, emphasizing its Roman origin.
• Semicircular arch: A more geometric description of the round arch's shape.
• Voussoir (n): A wedge-shaped stone or brick that forms part of an arch.
• Keystone (n): The central, topmost voussoir in an arch, which is often the last piece placed and locks the others into position.

Synonyms

• Roman arch
• Semicircular arch

Antonyms / Contrasting Architectural Forms

• Pointed arch (or Gothic arch): An arch formed by two curves that meet at a distinct apex or point, characteristic of Gothic architecture.
• Horseshoe arch: An arch that curves inward more than a semicircle, resembling a horseshoe.
• Lintel: A horizontal beam or stone spanning an opening, representing a non-arched structural form.

Noun

1. an arch formed in a continuous curve; characteristic of Roman architecture