Definition of "airlock" []

• A sealed, airtight chamber, such as in a manned spacecraft or submarine, used to provide access to and from the sealed area without allowing air out or water in. (noun)

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• "Step Twelve: Gently peel soap mold from sides of soap until airlock is broken."
• "O'BRIEN: The airlock, which is on the International Space Station, while the Shuttle has been busy doing its thing with Hubble, there are still astronauts living on the Space Station."
• "On the other side of the airlock was the open crater floor."