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.
Other definitions for air-lock (2 of 2)
to place in or confine to an air lock: to air-lock divers before they descend.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use air lock in a sentence
In a moment the half-dozen men outside had reached the ship's side, and had pulled themselves down inside the airlock.
As Liggett and the men trooped down to the airlock, Kent turned back toward his superior.
Kent reached the lower-deck just as Krell entered from the airlock, his swarthy face smiling as he removed his helmet.
Liggett and the rest had their suits adjusted, and with bars in their grasp, followed Krell into the airlock.
Kent's nod to Jandron went unanswered, and he and Liggett adjusted their helmets and entered the airlock.
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