air lock


Definition of air lock

1 : an intermediate chamber with two airtight doors or openings to permit passage between two dissimilar spaces (such as two places of unequal atmospheric pressure)
2 : a stoppage of flow caused by air being in a part where liquid ought to circulate

Examples of air lock in a Sentence

Recent Examples on the Web On passes that traveled 6-10 yards in the air Lock was 5 of 7 for 45 yards. Ryan O’halloran, The Denver Post, "Broncos QB Drew Lock’s development gained another step against Lions’ defense: Patience," 23 Dec. 2019 In the wild, the fish thankfully don’t have to be flung manually into the air lock; if all goes well, they’re attracted naturally through a combination of habitat mimicry and manipulation to enter the chamber on their own. Aja Romano, Vox, "These unanswered questions are fueling speculation about the sex offender’s life and death.," 11 Aug. 2019 Finally, a person floats weightlessly into an air lock. Rhett Allain, WIRED, "The Many Shades of Bad Physics," 8 June 2018 In practice, a warming Arctic strains the jet stream’s ability to keep all that cold polar air locked away in the north. Avery Thompson, Popular Mechanics, "Why the Eastern U.S. Is So Cold Right Now," 29 Dec. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'air lock.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of air lock

1840, in the meaning defined at sense 1

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Time Traveler for air lock

Time Traveler

The first known use of air lock was in 1840

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Statistics for air lock

Last Updated

5 Jan 2020

Cite this Entry

“Air lock.” Dictionary, Merriam-Webster, Accessed 26 Feb. 2020.

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More Definitions for air lock

air lock


English Language Learners Definition of air lock

: a small room that has two doors which can be sealed tightly so that no air enters or leaves and that is used for moving between two spaces with different air pressures in a submarine, spaceship, etc.

More from Merriam-Webster on air lock

Rhyming Dictionary: Words that rhyme with air lock Encyclopedia article about air lock

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