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English definition of “ball-and-socket joint”

ball-and-socket joint

noun [C]     specialized
a joint (= place where two bones are connected ) consisting of a round end and a hollow socket that fit together and move easily : The hip joint is a ball-and-socket joint .Bone structures
(Definition of ball-and-socket joint noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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