society > armed hostility > military equipment > weapon > device for discharging missiles > firearm > gun carriage > [noun] > planks to support gun or carriage (4)
Military. A piece of timber forming one of the rests of a wooden platform for artillery.
Military. A light spar or beam used in the construction of a gun or mortar platform. Obsolete.
concrete. Timber or planks used as a support for a gun, etc., or to facilitate its removal.
a plank for supporting the trail of a gun-carriage.