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- Dictionaryvacuum/ˈvakjuːm/
noun
- 1. a space entirely devoid of matter. Similar
- 2. a vacuum cleaner. Similar
verb
- 1. clean with a vacuum cleaner: "the room needs to be vacuumed"
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A vacuum ( pl.: vacuums or vacua) is space devoid of matter. The word is derived from the Latin adjective vacuus (neuter vacuum) meaning "vacant" or "void". An approximation to such vacuum is a region with a gaseous pressure much less than atmospheric pressure. [1] .
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).
Apr 12, 2021 · In science, a vacuum is a volume that contains little or no matter. In other words, a vacuum is a region with an extremely low pressure . The word “vacuum” comes from the Latin word vacuus , meaning “empty.”
1. : emptiness of space. 2. a. : a space absolutely devoid of matter. b. : a space partially exhausted (as to the highest degree possible) by artificial means (such as an air pump) c. : a degree of rarefaction below atmospheric pressure. 3. a. : a state or condition resembling a vacuum : void.
A region of space having extremely low gas pressure relative to surrounding pressure. The air pump of a vacuum cleaner, for example, drastically reduces the air pressure inside the device, creating a vacuum; the pressure difference causes air to rush into it, carrying dust and debris along with it.
A vacuum is essentially a great lack of something — a place where virtually all matter, even air, has been removed. It can describe something that's literally empty — or something that just seems that way, like a political vacuum.
Definition of vacuum noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
If you vacuum something, you clean it using a vacuum cleaner. The chambermaid vacuumed the carpets today. It's important to vacuum all the carpets and rugs regularly.
1. a. Absence of matter. b. A space empty of matter. c. A space relatively empty of matter. d. A space in which the pressure is significantly lower than atmospheric pressure. 2. A state of emptiness; a void. 3. A state of being sealed off from external or environmental influences; isolation. 4. pl. vac·uums A vacuum cleaner. adj. 1.
5 days ago · vacuum, space in which there is no matter or in which the pressure is so low that any particles in the space do not affect any processes being carried on there. It is a condition well below normal atmospheric pressure and is measured in units of pressure (the pascal).
