Lierne rib(redirected from branch rib)
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Lierne´ rib`(lyârn´ rĭb`)
|n.||1.||(Arch.) 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.|
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.