Definition of in a vacuum
- The group was operating in a vacuum, cut off from the rest of the world.
- The city's riots did not happen in a vacuum. They were caused by recent political events.
: emptiness of space
: a space absolutely devoid of matter
: a space partially exhausted (as to the highest degree possible) by artificial means (such as an air pump)
: to use a vacuum device (such as a vacuum cleaner) on
: to draw or take in by or as if by suction
: to operate a vacuum device
: of, containing, producing, or utilizing a partial vacuum
: of or relating to a vacuum device or system
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