Noun:

कमानीचा मधला दगड,

keystones's Usage Examples:

Interesting features include the stone-incised fluer-de-lis keystones.

This action is worthwhile even when plastic keystones are used.

The bridge has rusticated voussoirs and keystones, a parapet with rounded coping, and pilastered ends.

The only decoration on the façade was brick corbelling at the cornice level and keystones over the windows.

arch, with triple keystones, bands, parapets with rounded coping, and pilastered ends.

The oval window in the facade dormer includes ornamental keystones, also facing the cardinal.

and vaults (such as quasi-domes) keystones are often enlarged beyond the structural requirements and decorated.

The first floor projecting corner wings have arched sash windows with expressed imposts, extrados and keystones.

In arches and vaults (such as quasi-domes) keystones are often enlarged beyond the structural requirements and decorated.

The arches have expressed imposts, extrados and keystones, and are surmounted by a frieze with moulded swags.

rusticated voussoirs and keystones, a parapet with rounded coping, and pilastered ends.

frontage has a (now enclosed) belvedere, with arched openings with imposts, extrados, keystones, small balustrades, and parapet with stepped cornice.

bands of stone and decorative lintels and keystones separate window fenestrations between floors, and a tin cornice on each wing contains "broken pediments.

Synonyms:

backbone, linchpin, support, mainstay, lynchpin, anchor,

Antonyms:

forbid, disallow, unfasten, unskilled, straight line,