capital

Narrower terms
bell capital
block capital
Corinthian / Corinthianesque capital
crocket capital
cushion capital
flat leaf capital
scallop capital
slipped scallop capital
tau-cross capital
tectonic capital
trilobed capital
waterleaf capital

The architectural member which surmounts a column and supports an arch. It often provides the visual transition between a round column or shaft below and a square impost block above, which in turn supports the springing of the arch.

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