vacuum

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English[edit]

Alternative forms[edit]

Etymology[edit]

From Latin vacuum (an empty space, void), noun use of neuter of vacuus (empty), related to vacare (be empty)

Pronunciation[edit]

Noun[edit]

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vacuum (plural vacuums or vacua) (see usage notes)

  1. A region of space that contains no matter.
  2. A vacuum cleaner.
  3. The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, such as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.
    a vacuum of 26 inches of mercury, or 13 pounds per square inch

Usage notes[edit]

  • In the sense of "a region of space that contains no matter", the plural of vacuum is either vacua or vacuums. In the sense of a "vacuum cleaner" vacuums is the only plural.
  • The Latin in vacuo is sometimes used instead of in a vacuum (in free space).

Synonyms[edit]

  • (vacuum cleaner): hoover (British)

Antonyms[edit]

  • (region of space that contains no matter): plenum

Derived terms[edit]

Translations[edit]

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.

Verb[edit]

vacuum (third-person singular simple present vacuums, present participle vacuuming, simple past and past participle vacuumed)

  1. (transitive) To clean (something) with a vacuum cleaner.
  2. (intransitive) To use a vacuum cleaner.

Synonyms[edit]

Translations[edit]

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.

French[edit]

Pronunciation[edit]

Noun[edit]

vacuum m (plural vacuums)

  1. vacuum (space containing no matter)

Synonyms[edit]

External links[edit]


Latin[edit]

Adjective[edit]

vacuum

  1. nominative neuter singular of vacuus