A hydraulic device attached to a door in its one end and to the doorframe in the other, performing one or more of the following functions: a) dampening the movements of the door, b) making sure that the door closes properly, and c) assisting in opening it.

A pump especially adapted for pumping water from the hull of a wrecked vessel.

A method of ventilation used in respiration accomplished by expanding and contracting the entire throat in a rhythmic manner that is externally apparent.

A handheld pump used to inflate the tyres of bicycles.

plural of pump car

A light railroad car propelled by a hand-operated pumping mechanism; a handcar. / A child's tricycle operated by similar action.

A pump in which a rapidly running endless rope raises water by the momentum communicated to the water by its adhesion to the rope.

A kind of deep-well pump placed at the level of the water, and operated from above ground.

(mining) A direct single-acting pumping engine, in which the steam cylinder is placed above the pump.

A method of ventilation used in respiration in which the animal moves the floor of its mouth in a rhythmic manner that is externally apparent. It is the sole means of inflating the lungs in amphibians.