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vacuum

  • noun
  • va·cu·um
  • /ˈvæ.kjuːm/

A region of space that contains no matter.

Other meanings

  1. 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”

  2. A spacetime having tensors of zero magnitude.

Related words

  • abdominal vacuum
  • nature abhors a vacuum
  • stomach vacuum
  • vacuum workout
  • bee vacuum
  • central vacuum
  • double Kerr vacuum
  • electrovacuum
  • false vacuum
  • high vacuum
  • in a vacuum
  • intervacuum

Example sentences

  • “Nothing happens in a vacuum.”

    Tatoeba · shekitten · CC0
  • “The vacuum of space has no air and no pressure.”

    Tatoeba · Igider · CC0

Word history

From New Latin "vacuum".

Where this comes from

This definition is adapted from “vacuum” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.