Cartilage bone

from WordNet (r) 3.0 (2006)

cartilage bone
    n 1: any bone that develops within cartilage rather than a
         fibrous tissue

from The Collaborative International Dictionary of English v.0.48

Cartilage \Car"ti*lage\, n. [L. cartilago; cf. F. cartilage.]
   (Anat.)
   A translucent, elastic tissue; gristle.
   [1913 Webster]

   Note: Cartilage contains no vessels, and consists of a
         homogeneous, intercellular matrix, in which there are
         numerous minute cavities, or capsules, containing
         protoplasmic cells, the cartilage corpuscul. See Illust
         under {Duplication}.
         [1913 Webster]

   {Articular cartilage}, cartilage that lines the joints.

   {Cartilage bone} (Anat.), any bone formed by the ossification
      of cartilage.

   {Costal cartilage}, cartilage joining a rib with he sternum.
      See Illust. of {Thorax}.
      [1913 Webster]