Definition of cartilage noun from the Oxford Advanced American Dictionary

 

cartilage

 noun
noun
NAmE//ˈkɑrt̮l̩ɪdʒ//
 
[uncountable, countable]
 
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the strong white tissue that is important in support and especially in joints to prevent the bones rubbing against each other I've damaged the cartilage in my knee.
See the Oxford Advanced Learner's Dictionary entry: cartilage