Suspensura

Suspensura is the architectural term given by Vitruvius to piers of square bricks (about 20 cm × 20 cm) that supported a suspended floor of a Roman bath covering a hypocaust cavity through which the hot air would flow.

 This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "". Encyclopædia Britannica (11th ed.). Cambridge University Press. 

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