English version

retinal scanner

From Longman Dictionary of Contemporary English
Related topics: Computers
retinal scannerˌretinal ˈscanner noun [countable] 🔊 🔊 computer equipment that is used to examine someone’s retina in order to identify them. Retinal scanners are used by the police and immigration officials at some airports to check the information on someone’s passport or ID card.
Pictures of the day
Do you know what each of these is called?
Click on the pictures to check.