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jetavator

American  
[jet-uh-vey-ter] / ˈdʒɛt əˌveɪ tər /

noun

Rocketry.
  1. an extension of the exhaust nozzle of a rocket, for controlling the direction of the exhaust gases.


Etymology

Origin of jetavator

First recorded in 1955–60; jet 1 + (el)evator

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