radar trap 
noun
An area of road in which radar is used by the police to detect vehicles exceeding a speed limit.A recent radar trap in our area caught someone who was driving at 104 mph in a 60 mile limit....
- An oncoming car flashing its headlights means one of two things only - either ‘After you’ at an intersection, or ‘Watch out, the coppers have a radar trap down the road!’
- I came over the brow of a hill to find six motorbike police leaning on the garden wall and picking off their victims for passing through a radar trap.
- ox fence
- ox-fly
- ox foot
- Oxford
- Oxford accent
- Oxford-bagged
- Oxford bags
- Oxford blue
- Oxford clay
- Oxford cloth
- Oxford comma
- Oxford corner
- Oxford English
- Oxford English Dictionary
- Oxford frame
- Oxford gray
- Oxford grey
- Oxford Group
- Oxford Grouper
- Oxford hollow
- Oxfordian
- Oxfordish
- Oxford John
- Oxford marmalade
- Oxford Movement