corbelling

/ ˈkɔːbəlɪŋ /

noun

Its vault is constructed of stones corbelling over one another, and is not a true arch (Figs. 52, 52a).

Two courses of corbelling also appeared on the two chimneys located at the back and in the center section of the building.

It is roofed by the successive overlapping or corbelling of the upper courses.

Buildings in which this system is used are occasionally roofed with slabs, but more often corbelling is employed.

The chamber is circular, and roofed partly by corbelling and partly by a large slab.

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