Architecture. A diagonal groin or rib of a vault, two of which cross each other at the vault's centre; = ogee, n. 1. Obsolete.

Architecture, Building, and Engineering. Any one of the transverse or oblique arches by which a compound vault is supported; the edge or groin of two…

In Architecture the rib of a Gothic vault; in Zoology (see quot. 1881); in Mechanics the beam or axle of a pump or similar machine; also, a bolt or…

General attributive, as vaulting field, vaulting pier, vaulting pillar, vaulting rib, vaulting-span, vaulting shaft, vaulting-surface.

a rib in the corner of a vault.

a rib (rib, n.1 7) applied to the surface of vaulting purely for decoration.

a transverse rib.

(see quots. 1835–1850); also attributive.

In vaulting, a short rib which neither springs from an impost nor runs along the ridge, but connects the bosses and intersections of the principal…

(a) Architecture (see quots.); (b) in a side of beef, a sternal rib running crosswise to the body.