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to evacuate

to evacuate

1 6.9
To remove air or gas from a container to make a vacuum
  • verb
  • /ɪˈvæk.ju.eɪt/
  • Specialized
translation icon : evacuar
  • To create a vacuum in the experiment, we need to evacuate all the air from the flask.
  • evacuate a vacuum chamber
  • evacuated electron beam

Examples

  • What I will do is I will use this vacuum pump to evacuate both of these tanks like this.

  • "I notice the patents call for an evacuated system," Windom said.

    Fiction book (1991)
  • Now we evacuate the air from the chamber.

  • What I got here is an exhaust system, so that I can evacuate the gas from this room.

  • Evacuate the atmosphere on the other side of this hatch!

  • The piston evacuates the air in a period of a few seconds.

  • Their achievement opens the way for guiding light with little or no loss through an evacuated channel.

    Academic text (1999)
  • The volume of the collected expired air was measured by evacuating the collection bag through a gas flow meter.

    Academic text (1990)
  • But it gets better: the evacuated tube system will be the fastest and the safest transportation system ever implemented.

    Blog text (31)
  • We limit these effects by using baffling and low-scatter optics in the evacuated beam tubes.

    Academic text (1999)

Synonyms

to release
vsto evacuate
446 2.7

To allow a liquid, gas, or energy to flow out

specifically removes air to create a vacuum, not simply letting escape
to expel
vsto evacuate
34 5.0

Push out a substance, for example gas from a body or container

focuses on removing air to form a vacuum, not just forcing contents out
to suck out
vsto evacuate
16 4.5

Pull something out of a place by using air to draw it in

uses removal to make a vacuum inside a closed container
to discharge
vsto evacuate
12 4.4

Take people or things out of a vehicle by unloading

targets removing internal air to produce vacuum, not general emissions
to exhaust
vsto evacuate
  • Specialized
10 4.8

To remove gas or steam from a machine

aims to create a vacuum inside a container rather than venting machine output
to deaerate
vsto evacuate
  • Specialized
9.9

Remove air or gas from a liquid

removes air or gas to create a vacuum inside a sealed container

Antonyms

44 2.9

To fill something with air so it becomes larger and round

to pressurize
  • Specialized
30 5.2

To increase or keep air pressure inside a closed space using a machine

Phrasal Verbs

To move people out of a building for safety during an emergency

Leave a place because it is dangerous or officials tell you to

How Airless

to evacuate
  • Specialized
1 6.9
to depressurize
  • Specialized
9 6.3

Surface Forms

evacuate infinitive
evacuated past
evacuated past participle
evacuating present participle
evacuates third person singular

Morphology

evacuate = vacate (semi-transparent) = e + vacate

The morphological relation to 'vacate' (to empty) is clear, but the specific technical sense of removing air to create a vacuum requires specialized knowledge.

Etymology

Evacuate comes from the Latin parts e- ('out') and vac- ('empty'), which is the same root as vacuum. So to evacuate a flask or bulb is to pump the air 'out' and leave it empty for experiments.