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Air Lock
4 dictionary results for: air lock
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
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]
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
air-lock       [air-lok] Pronunciation Key
–verb (used with object)
to place in or confine to an air lock: to air-lock divers before they descend.

[Origin: 1855–60]
American Heritage Dictionary - Cite This Source - Share This
air lock  
n.  
  1. An airtight chamber, usually located between two regions of unequal pressure, in which air pressure can be regulated.
  2. A bubble or pocket of air or vapor, as in a pipe, that stops the normal flow of fluid through the conducting part.

WordNet - Cite This Source - Share This
air lock

noun
a chamber that provides access to space where air is under pressure [syn: airlock

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