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English definition of “vacuum”

vacuum

noun [C]    /ˈvæk·jum, -ju·əm, -jəm/
physics a space without any gas or other matter in it, or a space from which most of the air or gas has been removed: Edison knew that he had to create a vacuum inside the lightbulb. fig. No marriage exists in a vacuum (= in a situation where nothing else has any influence).
(Definition of vacuum noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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