speed trap

noun

1. a section of a road where hidden police, radar, etc., carefully check the speed of motorists and strictly enforce traffic regulations: sometimes characterized by hard-to-see signals, hidden traffic signs, etc.

speed trap

noun

1. a section of road on which the police check the speed of vehicles, often using radar

Word History and Origins

Origin of speed trap¹

First recorded in 1920–25

Example Sentences

Police are now combing through speed-trap photos to find the car that hit and killed her.

From The Daily Beast