·- In Gothic vaulting, any rib which does not spring from the impost and is not a ridge rib, but passes from one boss or intersection of the principal ribs to another.
·noun Any longitudinal ridge in a plant. II. Rib ·noun A prominent line or ridge, as in cloth. III...
Webster's Dictionary of the English Language
A wife: an allusion to our common mother Eve, made out of Adam's rib. A crooked rib: a cross-grained...
Dictionary of The Vulgar Tongue by Francis Grose