Third-person singular simple present indicative form of pump out

plural of door pump

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 form of rotary pump.

plural of slider pump

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

(slang) A sex toy that induces suction towards the labia and vulva.

plural of donkey pump

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

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