amphometer
/amˈfɒmɪtə/noun Australian
A device for measuring the speed of a vehicle over a fixed distance, widely used by traffic police: this stretch of road became a favourite location for the traffic police’s amphometer...
- The evidence on the dial of the amphometer should not have been admitted.
- When motorists are aware that an amphometer is being operated, they adopt a more cautious approach.
- I noticed a highway patrolman setting up the amphometer tapes.
Origin
1960s: probably from the arbitrary element a + mph + -o- + -meter.