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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

As Dragon doesn't have an airlock, the crew were exposed to the vacuum of space during the spacewalk.

From BBC Sep. 15, 2024

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

Throughout the process, he had been feeding tether out of the airlock.

From "The Martian" by Andy Weir

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