Definition of amphometer in English:

amphometer

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’
    • ‘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.’
    • ‘The evidence on the dial of the amphometer should not have been admitted.’
    • ‘The most controversial point made in this decision was that the amphometer was not among the class of notorious instruments.’
    • ‘The paper investigated the memory effect of police amphometer traps in Western Australia.’

Origin

1960s: probably from the arbitrary element a + mph + -o- + -meter.

Pronunciation

amphometer

/amˈfɒmɪtə/