airtight lock

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• air lock — noun a chamber that provides access to space where air is under pressure • Syn: ↑airlock • Hypernyms: ↑chamber * * * noun 1. : an air space with two airtight doors or openings for permitting entrance to or exit from a sealed off space under… …   Useful english dictionary

• air lock — 1. Civ. Eng. 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… …   Universalium

• air lock — n. airtight chamber, small area between two airtight doors which allows one to pass through to an area with a different atmospheric pressure; pocket of air or vapor in a pipe that prevents the regular flow of fluids …   English contemporary dictionary

• air lock — air′ lock n. 1) civ an airtight chamber permitting passage to or from a space, as in a caisson, in which the air is kept under pressure 2) mac an impedance in the functioning of a pump or a system of piping caused by the presence of an air… …   From formal English to slang

• air lock — n. 1. an airtight compartment, with adjustable air pressure, between places that do not have the same air pressure, as between the working compartment of a caisson and the outside 2. a blockage, as in a water pipe, caused by trapped air …   English World dictionary

• air lock — noun Date: 1851 1. an intermediate chamber with two airtight doors or openings to permit passage between two dissimilar spaces (as two places of unequal atmospheric pressure) 2. a stoppage of flow caused by air being in a part where liquid ought… …   New Collegiate Dictionary

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• Airlock — An airlock is a device which permits the passage of people and objects between a pressure vessel and its surroundings while minimizing the change of pressure in the vessel and loss of air from it. The lock consists of a small chamber with two… …   Wikipedia

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