flash-spottingn.Military the locating and reporting of hostile battery positions by observation of their gun-flashes.
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society > armed hostility > military operations > [noun] > reconnaissance > spotting of batteries
flash-spotting1922
1922 Encycl. Brit. XXX. 253/1 Any gun which fired at night within direct view of the enemy was liable to be marked down by the ‘flash-spotting’ section... It was therefore necessary to introduce flashless powder.