different between vacuum vs evacuation

English

Alternative forms

• vacuüm (rare)

Etymology

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

Pronunciation

• IPA^(key): /?væ.kju?m/, /?væ.kju?.?m/

Noun

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

1. A region of space that contains no matter.
2. (plural only "vacuums") 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

4. (physics) A spacetime having tensors of zero magnitude

Usage notes

• The Latin in vacuo is sometimes used instead of in a vacuum (in free space).

Synonyms

• (a region of space that contains no matter): vacancy, void
• (vacuum cleaner): hoover (British)

Antonyms

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

Derived terms

Related terms

Translations

Verb

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.
3. (transitive, databases) To optimise a database or database table by physically removing deleted tuples.

Synonyms

• (transitive sense): to hoover (British)
• (intransitive sense): to do the hoovering, to hoover (British)

Translations

French

Pronunciation

• IPA^(key): /va.k??m/

Noun

vacuum m (plural vacuums)

1. vacuum (space containing no matter)

Synonyms

• vide

Descendants

• Turkish: vakum

Further reading

• “vacuum” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Latin

Adjective

vacuum

1. accusative neuter singular of vacuus

Romanian

Etymology

From Latin vacuum

Noun

vacuum n (plural vacuumuri)

1. vacuum

Declension

Spanish

Alternative forms

• vácuum (recommended)

Noun

vacuum m (plural vacuums)

1. vacuum

English

Etymology

From Old French evacuation, from Late Latin ?vacu?ti?.

Pronunciation

• IPA^(key): /??vækju?e???n/
• Rhymes: -e???n

Noun

evacuation (countable and uncountable, plural evacuations)

1. The act of evacuating; leaving a place in an orderly fashion, especially for safety.
2. Withdrawal of troops or civils from a town, fortress, etc.
3. The act of emptying, clearing of the contents, or discharging, including creating a vacuum.
4. Voidance of any matter by the natural passages of the body or by an artificial opening; defecation; also, a diminution of the fluids of an animal body by cathartics, venesection, or other means.
5. That which is evacuated or discharged; especially, a discharge by stool or other natural means.

   (Can we find and add a quotation of Quincy to this entry?)

6. Abolition; nullification.
   • 1594, Richard Hooker, Of the Lawes of Ecclesiastical Politie

     evacuation of all Romish ceremonies

Derived terms

Related terms

• evacuee
• evacuate
• evacuation slide

Translations

Old French

Etymology

Borrowed from Latin ?vacu?ti?.

Noun

evacuation f (oblique plural evacuations, nominative singular evacuation, nominative plural evacuations)

1. (medicine) evacuation (of the bowels)