Rhomboidal sinus

What is Rhomboidal sinus?

Rhomboidal sinus definition and meaning on Dictionary terms:
Also ribbon. Shipbuilding. a strip of wood or metal running fore-and-aft along frames to keep them in the proper position until the shell planking or plating is in place.
Carpentry. ribbon(def 8).


reference: www.dictionary.com/browse/rhomboidal-sinus