mouthguard

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mouth·guard

BrE

/ˈmaʊθɡɑːd/

NAmE

/ˈmaʊθɡɑːrd/

(

NAmE

)

(

BrE

gum·shield

)

noun

a cover that a sports player wears in his/her mouth to protect the teeth and gums （运动员所含的）护齿