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English definition of “synovial fluid”

synovial fluid

noun [U]     /saɪˌnəʊ.vi.əlˈfluː.ɪd/ US  /-ˌnoʊ-/ specialized
a transparent, sticky liquid produced in our joints (= places where two bones are connected) that allows the bones and tendons to move smoothlySubstances and structures in the body
(Definition of synovial fluid noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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