Nozzle
Against a dark blue sky, exhaust shoots out of the nozzle of a solid rocket booster during a shuttle launch

Exhaust from a solid rocket booster nozzle marks the perfect launch of space shuttle Atlantis. Image Credit: NASA

      a short, narrow tube that directs a flow or spray of liquid or gas



Sentences:
Flames came out of the nozzles of the solid rocket boosters.

He pointed the nozzle of the garden hose toward the flowers.



More Information:
http://www.nasa.gov/missions/research/aerospike_rocket.html
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