air-lock

[ air-lok ]
/ ˈɛərˌlɒk /

verb (used with object)

to place in or confine to an air lock: to air-lock divers before they descend.

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weal

Origin of air-lock

First recorded in 1855–60

Definition for air-lock (2 of 2)

air lock

noun

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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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