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airlock

British  
/ ˈɛəˌlɒk /

noun

  1. a bubble in a pipe causing an obstruction or stoppage to the flow

  2. an airtight chamber with regulated air pressure used to gain access to a space that has air under pressure

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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The weekend-to-work transition became less painful, too: Mondays were like an airlock between my weekend downtime and my workweek of meetings and calls.

From The Wall Street Journal Feb. 25, 2026

It is understood Connolly was a passenger in a white taxi which left HMP Peterborough via the vehicle airlock, a set of two gates exiting the prison, shortly after 10:00 BST.

From BBC Aug. 21, 2025

Due to the lack of an airlock on the Crew Dragon, the 13-foot-wide capsule will be depressurized and exposed to space during the walk.

From Los Angeles Times Aug. 26, 2024

A 3-liter glass jar with an airlock lid and ceramic weights will allow you to ferment small quantities of vegetables.

From Seattle Times Dec. 13, 2023

I need it working to get from the airlock to the rover.

From "The Martian" by Andy Weir

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