Definitions
1.NounA short tube, usually tapering, forming the vent of a hose or pipe.
2.NounA short outlet or inlet pipe projecting from the end or side of a hollow vessel, as a steam-engine cylinder or a steam boiler.
3.NounThe nose of an animal; muzzle.
4.NounThe part of an earbud that accommodates eartips."The shape of the nozzle prevents the use of aftermarket eartips."