Syringe

Syringe (Gr. syrix, 'a pipe'), a hydraulic instrument, consisting of a cylinder of metal or glass, having a conical nozzle at one end, and the other fitted with an air-tight piston. The nozzle being inserted in a liquid, the retraction of the piston draws the liquid into the cylinder, on the principle of the Pump (q.v.), and by its forward pressure the liquid is expelled from the nozzle in the form of a jet. See CLYSTER.