Archit. a short rib used in Gothic vaulting to connect the bosses and intersections of the main ribs
Origin of lierneFr: see liana
A subordinate rib used in Gothic vaulting to connect the intersections and bosses of the primary ribs.
Origin of lierneFrench from lier to bind from Old French; see liable .
B. diagonal ribs
C. ridge ribs
D. transverse rib