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Definition of Gun pendulum
1. Noun. A ballistic pendulum consisting of a suspended gun; the velocity of a projectile in the bore of a gun can be measured by the recoil when the gun is discharged. 
Generic synonyms: Ballistic Pendulum
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1. Noun. A ballistic pendulum consisting of a suspended gun; the velocity of a projectile in the bore of a gun can be measured by the recoil when the gun is discharged.