資料來源 : Webster's Revised Unabridged Dictionary (1913)

   4. That by means of which a person or thing lifts or is
      lifted; as:
      (a) A hoisting machine; an elevator; a dumb waiter.
      (b) A handle.
      (c) An exercising machine.

   5. A rise; a degree of elevation; as, the lift of a lock in
      canals.

   6. A lift gate. See {Lift gate}, below. [Prov. Eng.]

   7. (Naut.) A rope leading from the masthead to the extremity
      of a yard below; -- used for raising or supporting the end
      of the yard.

   8. (Mach.) One of the steps of a cone pulley.

   9. (Shoemaking) A layer of leather in the heel.

   10. (Horology) That portion of the vibration of a balance
       during which the impulse is given. --Saunier.

   {Dead lift}. See under {Dead}. --Swift.

   {Lift bridge}, a kind of drawbridge, the movable part of
      which is lifted, instead of being drawn aside.

   {Lift gate}, a gate that is opened by lifting.

   {Lift hammer}. See {Tilt hammer}.

   {Lift lock}, a canal lock.

   {Lift pump}, a lifting pump.

   {Lift tenter} (Windmills), a governor for regulating the
      speed by adjusting the sails, or for adjusting the action
      of grinding machinery according to the speed.

   {Lift wall} (Canal Lock), the cross wall at the head of the
      lock.

資料來源 : WordNet®

lift pump
     n : pump used to lift rather than force a liquid up