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plaque

noun [U] (SUBSTANCE)
 
 
/plɑːk/ /plæk/ US  /plæk/

Definition

a substance containing bacteria that forms on the surface of teethProblems with bones, joints and teethDentistryThe teeth
(Definition of plaque noun (SUBSTANCE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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