Try Our Apps


The Best Internet Slang

air lock

Civil Engineering. an airtight chamber permitting passage to or from a space, as in a caisson, in which the air is kept under pressure.
the impedance in the functioning of a pump or a system of piping caused by the presence of an air bubble; vapor lock.
Origin of air lock
First recorded in 1855-60


[air-lok] /ˈɛərˌlɒk/
verb (used with object)
to place in or confine to an air lock:
to air-lock divers before they descend.
First recorded in 1855-60 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for airlock
Historical Examples
  • Expected a fight, but some big guy let us in through an airlock.

    In the Orbit of Saturn Roman Frederick Starzl
  • He stood in the airlock door for long minutes, staring angrily about.

    Pariah Planet Murray Leinster
  • Then he opened the airlock door, hating the fact that he shook and trembled.

    Pariah Planet Murray Leinster
  • Tolto dragged him in to the safety of the airlock opening, where he could watch.

    The Martian Cabal Roman Frederick Starzl
  • "Same procedure as before," Norris said, stepping out of the airlock.

    The Long Voyage Carl Richard Jacobi
  • Lura and a half dozen of the crew were passed through the airlock and joined them.

    Giants on the Earth Sterner St. Paul Meek
  • She entered the airlock and in a few moments was again inside the ship.

    Giants on the Earth Sterner St. Paul Meek
  • Damis gave a mighty bound and leaped through the airlock of the ship.

    Giants on the Earth Sterner St. Paul Meek
  • Jarvis and Leroy went through the airlock out to the grey plain.

    Valley of Dreams Stanley Grauman Weinbaum
  • Why don't you jump out the window, Roger, remembering to shut the airlock after you?

    Bread Overhead Fritz Reuter Leiber
British Dictionary definitions for airlock


a bubble in a pipe causing an obstruction or stoppage to the flow
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
Cite This Source

Word of the Day

Difficulty index for air lock

Few English speakers likely know this word

Word Value for airlock

Scrabble Words With Friends

Nearby words for airlock