Priming | n. 1. The powder or other combustible used to communicate fire to a charge of gunpowder, as in a firearm. [ 1913 Webster ] 2. (Paint.) The first coating of color, size, or the like, laid on canvas, or on a building, or other surface. [ 1913 Webster ] 3. (Steam Eng.) The carrying over of water, with the steam, from the boiler, as into the cylinder. [ 1913 Webster ] Priming of the tide. See Lag of the tide, under 2d Lag. -- Priming tube, a small pipe, filled with a combustible composition for firing cannon. -- Priming valve (Steam Eng.), a spring safety valve applied to the cylinder of a steam engine for discharging water carried into the cylinder by priming. -- Priming wire, a pointed wire used to penetrate the vent of a piece, for piercing the cartridge before priming. [ 1913 Webster ]
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