vacuum: Meaning and Definition of
Pronunciation: (vak'ym, -y-um, -yum), [key]
— n., pl. adj., v. vac•u•ums vac•u•a
- a space entirely devoid of matter.
- an enclosed space from which matter, esp. air, has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere (opposed to plenum).
- the state or degree of exhaustion in such an enclosed space.
- a space not filled or occupied; emptiness; void: The loss left a vacuum in his heart.
- a vacuum cleaner or sweeper.
- a state of lowest energy in a quantum field theory.
- of, pertaining to, employing, or producing a vacuum.
- (of a hollow container) partly exhausted of gas or air.
- pertaining to a device or process that makes use of a vacuum to accomplish a desired task.
- noting or pertaining to canning or packaging in which air is removed from the container to prevent deterioration of the contents.
- to use a vacuum cleaner on; clean with a vacuum cleaner: to vacuum rugs.
- to treat with any vacuum device, as a vacuum drier.
- to use a vacuum cleaner: to vacuum in the dining room.
- vacuum (Thesaurus)