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• a  of or relating to cartilage
• s  difficult to chew

• The cartilaginous articular surfaces of his knee the parts that rub together when the knee bends were pristine.
• They have a cartilaginous backbone.
• Spinal discs, cushionlike pads that separate the vertebrae, are composed of tough, cartilaginous fibers and filled with water and a protein called "ground substance.

• gristly
• rubbery

News & Articles

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• It's Time for Shark Week to Get Bigger — And Less Bloodthirsty
  Shark Week started yesterday on the Discovery Channel, celebrating the cartilaginous fish that have been around for more than 420 million years now, compared to a measly 200,000 years for humans. And Shark Week itself has been around for 26 years now, providing viewers with over a quarter century of Shark Weeks!        
  Aug. 5, 2013 - Wired News