flashgun

[ flash-guhn ]
/ ˈflæʃˌgʌn /

noun Photography.

a device that simultaneously discharges a flashbulb and operates a camera shutter.

Origin of flashgun

First recorded in 1925–30; flash + gun1

British Dictionary definitions for flash gun

flash gun

noun

a type of electronic flash, attachable to or sometimes incorporated in a camera, that emits a very brief flash of light when the shutter is open