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 accomodates eartips."The shape of the nozzle prevents the use of aftermarket eartips."