Definition of dash cam noun from the Oxford Advanced Learner's Dictionary

 

dash cam

 noun
noun
BrE BrE//ˈdæʃ kæm//
 
; NAmE NAmE//ˈdæʃ kæm//
 
 
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a camera that is fixed to a car's dashboard (1) (= the part in front of the driver, with the instruments and controls) The police dash cam video shows what happened. Word Origin early 21st cent.: blend of dashboard and camera.