air-lock


air-lock

verb (used with object)

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

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.

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