cushion capital

Broader term
capital

Normally described as a capital formed by the intersection of a cube and a sphere. It has flat semicircular faces below the abacus, and the triangular lower angles of the bell are all that remain of the spherical form. The semicircular faces are called shields. In variations of the cushion capital, the angles may be keeled or tucked. The shields and the bell may be decorated with carving.

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