Meaning of air lock

air' lock"

Pronunciation: [key]
  1. 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.

air-lock

Pronunciation: (âr'lok"), [key]
— v.t.
  1. to place in or confine to an air lock: to air-lock divers before they descend.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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