1. A coffered or paneled ceiling, especially one with sunken square or rectangular panels (coffers) in classical or neoclassical architecture.
Usage: plural: lacunaria or lacunarias; architectural term; from Latin lacunaria, neuter plural of lacunaris

Examples

• The Roman Pantheon features an impressive lacunaria with diminishing square coffers that create a sense of depth.
• The architect designed a lacunaria for the grand hall to echo the classical style of ancient temples.
• The lacunaria in the library's reading room adds both visual interest and acoustic benefits.
• Restoration of the lacunaria required careful documentation of the original panel dimensions.
• The neoclassical mansion's lacunaria was gilded and painted with intricate decorative motifs.