The Collaborative International Dictionary of English v.0.48:

Fibrocartilage \Fi`bro*car"ti*lage\, n. [L. fibra a fiber + E.
   cartilage.] (Anat.)
   A kind of cartilage with a fibrous matrix and approaching
   fibrous connective tissue in structure. --
   Fi`bro*car`ti*lag"i*nous, a.
   [1913 Webster]

WordNet (r) 3.0 (2006):

fibrocartilaginous
    adj 1: of or relating to fibrocartilage