Bible Dictionaries
Hydropneumatic Gun Carriage

Webster's Dictionary

A disappearing gun carriage in which the recoil is checked by cylinders containing liquid and air, the air when compressed furnishing the power for restoring the gun to the firing position. It is used with some English and European heavy guns.

Bibliography Information
Webster, Noah. Entry for 'Hydropneumatic Gun Carriage'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​h/hydropneumatic-gun-carriage.html. 1828.