Inverted arch

Also found in: Encyclopedia, Wikipedia.
(Arch.) an arch placed with crown downward; - much used in foundations.

See also: Inverted

References in periodicals archive ?
She tends to emphasise clay's softness and malleability, but sculptures dominated by those characteristics are shown alongside ones incorporating an arch or inverted arch that looks so strong and rigid that it might almost be cut steel.
Shaped like an inverted arch with circular windows, it is often referred to as 'the watermelon' or 'the boat' of Sampa, depending on one's interpretation.
6 metre wide bridge will have an inverted arch with a height of 100 metres.