AIRLOCK

airlock, air lock

(noun) a chamber that provides access to space where air is under pressure

Source: WordNet® 3.1

Etymology

Noun

airlock (plural airlocks)

A sealed, airtight chamber, such as in a manned spacecraft or submarine, used to provide access to and from the sealed area without allowing air out or water in.

Alternative form of air lock

Source: Wiktionary

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