The Collaborative International Dictionary of English v.0.48:

Claudication \Clau`di*ca"tion\, n. [L. claudicatio.]
   A halting or limping. [R.] --Tatler.
   [1913 Webster]

WordNet (r) 3.0 (2006):

claudication
    n 1: disability of walking due to crippling of the legs or feet
         [syn: lameness, limping, gimp, gimpiness,
         gameness, claudication]