nozzle
Definitions
A cylindrical or tapered spout attached to the end of a pipe or hose to control the speed or direction of a fluid jet.
A projecting part or spout through which a substance is discharged or admitted.
Examples
The gardener adjusted the nozzle on the hose to create a fine mist for the flowers.
Make sure the nozzle of the glue bottle is clear before you start your craft project.
The firefighter aimed the nozzle of the hose directly at the base of the flames.