Voussoir

[vu:swɑ:]

(noun.) wedge-shaped stone building block used in constructing an arch or vault.

Editor: Yvonne--From WordNet

(n.) One of the wedgelike stones of which an arch is composed.

Typed by Eddie

n. [Fr.] Arch-stone.

Checked by Kathy

n. one of the wedge-like stones which form part of an arch.—v.t. to form with such.

Typist: Serena