Nozzle (?), n. [A dim. of nose. √261.] [Written also nosle.] 1. The nose; the snout; hence, the projecting vent of anything; as, the nozzle of a bellows.
[1913 Webster]

2. Specifically: (a) A short tube, usually tapering, forming the vent of a hose or pipe. (b) A short outlet, or inlet, pipe projecting from the end or side of a hollow vessel, as a steam-engine cylinder or a steam boiler.
[1913 Webster]