noun

airlock

airlock

The astronaut entered the airlock from the spaceship.

The astronaut entered the airlock from the spaceship.

((an airlock)) a chamber for pressure equalization The spaceship has an external airlock.

Synonyms: decompression chamber

From 'air' + 'lock', a compartment that can be sealed to maintain air pressure.

Think of a chamber that 'locks' the 'air' in or out, allowing passage between different pressure environments.

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