air·stair
| \ ˈer-ˌster
\
\
plural airstairs
Definition of airstair
: a built-in or movable set of stairs that is used to allow people to enter and exit an aircraft
—often plural
The plate acted like a gate latch, preventing the airstairs from being lowered in flight.— Steve Martini, The Rule of Nine, 2010
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“Airstair.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/airstair. Accessed 18 May. 2021.
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Time Traveler for airstair
The first known use of airstair was in 1960
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