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flashgun

[flash-guhn]
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noun Photography.
  1. a device that simultaneously discharges a flashbulb and operates a camera shutter.
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Origin of flashgun

First recorded in 1925–30; flash + gun1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for flash gun

flash gun

noun
  1. 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
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012