—n. 1. a small device consisting of a glass, metal, or hard rubber tube, narrowed at its outlet, and fitted with either a piston or a rubber bulb for drawing in a quantity of fluid or for ejecting fluid in a stream, for cleaning wounds, injecting fluids into the body, etc.
2. any similar device for pumping and spraying liquids through a small aperture.
—v.t. to cleanse, wash, inject, etc., by means of a syringe.