variable-area exhaust nozzle

variable-area exhaust nozzle

[′ver·ē·ə·bəl ¦er·ē·ə ig′zȯst ‚näz·əl]
(aerospace engineering)
On a jet engine, an exhaust nozzle of which the exhaust exit opening can be varied in area by means of some mechanical device, permitting variation in the jet velocity.
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