In-vĕrt'ed, p. a.

participial adjective

p. a. 1. Changed in order; reversed. 2. (Geol.) Situated apparently in reverse order, as strata when folded back upon themselves by upheaval and the like.

Inverted arch (Arch.) an arch placed with crown downward, or one with its intrados below the axis or springing line, and of which the lowest stone is the keystone. [Written also, by abbreviation, invert, q. v.]

An architectural diagram showing three masonry piers connected by inverted arches above a shaded foundation layer.
Inverted Arches.