air-lock

air lock

noun
1.
Civil Engineering. an airtight chamber permitting passage to or from a space, as in a caisson, in which the air is kept under pressure.
2.
the impedance in the functioning of a pump or a system of piping caused by the presence of an air bubble; vapor lock.

Origin:
1855–60

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Air-lock is one of our favorite verbs.
So is absquatulate. Does it mean:
to bark; yelp.
to flee; abscond:
Dictionary.com Unabridged

air-lock

[air-lok]
verb (used with object)
to place in or confine to an air lock: to air-lock divers before they descend.

Origin:
1855–60
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source Link To air-lock
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