syringe

a medical instrument used to inject or withdraw fluids

A kind of small hand-pump for throwing a stream of liquid, or for purposes of aspiration. It consists of a small cylindrical barrel and piston, or a bulb of soft elastic material, with or without valves, and with a nozzle which is sometimes at the end of a flexible tube; -- used for injecting animal bodies, cleansing wounds, etc.

spray or irrigate (a body part) with a syringe

To inject by means of a syringe; as, to syringe warm water into a vein.