0 used to refer to a device that operates by forcing something, especially air, in or out of a closed space or container:
In any case, pressure and incentives should be applied to manufacturers to use pump-action cans.
He has studiously avoided the question as to the speed of action of bolt-action or lever-action compared with pump-action.
In pump-action mode the same components are driven by sliding the fore-end backwards.
Three prototypes were designed and tested: one semi-automatic, one rotary-drum, and one pump-action.
It is not semi-automatic or pump-action, and is loaded manually by lifting up the barrel and loading the shells at the breech.
With the traditional pump-action mechanism located under the barrel, there is no convenient forward location for a magazine.
An advantage of the pump-action over the bolt-action is its ease of use by both left- and right-handed users: like lever-actions, pump-actions are frequently recommended as ambidextrous in sporting guidebooks.
