1 Indefinite roughly triangular portion or flank between the crown and abutments of an arch, i.e. between the crown and the springing on the piers.
2 Timber slightly arched or concave on its underside under a lintel.
3 Part of a beam projecting below a floor, usually slightly cambered.
Users without a subscription are not able to see the full content. Please,
or login to access all content.