TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

VACUUM [7 records]

Record 1 2023-10-17

English

Subject field(s)
  • Astrophysics and Cosmography
  • Space Physics
CONT

A vastly large number of mathematically feasible string theory vacua ... currently exist, so it seems virtually impossible to figure out which could describe our universe.

OBS

vacua: plural.

Key term(s)
  • string theory vacua
  • vacua

French

Domaine(s)
  • Astrophysique et cosmographie
  • Physique spatiale

Spanish

Save record 1

Record 2 2017-06-12

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
DEF

Pressure that is less than [the] existing atmospheric pressure taken as a zero of reference.

CONT

The suction-and-pressure relief valve maintains the reservoirs at or near 0 psi and relieves any excessive positive or negative pressure.

OBS

vacuum: term officially approved by the Lexicon Project Committee (New Brunswick).

Key term(s)
  • under-pressure

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
DEF

Pression inférieure à la pression atmosphérique.

CONT

La ventilation s'appliquera à trois types d'installation : locaux en pression; locaux en dépression; locaux à la pression atmosphérique.

CONT

[Le] broyeur vibrant [...] peut broyer sous pression ou en dépression [...]

OBS

pression négative; dépression : termes uniformisés par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Maintenance.

OBS

dépression : terme uniformisé par le Comité du projet de lexiques (Nouveau-Brunswick).

Spanish

Campo(s) temático(s)
  • Mecánica de fluidos e hidráulica (Física)
Save record 2

Record 3 2011-06-03

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
DEF

... a condition that exists in a system when pressure is reduced below atmospheric pressure.

CONT

... a vacuum gauge connected to the chamber [of the moisture determination oven] reads vacuum levels to 30" Hg.

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
DEF

État d'un milieu gazeux dont la pression est très inférieure à la pression atmosphérique.

CONT

Une jauge à vide reliée à l'enceinte de l'étuve de mesure de l'humidité indique jusqu'à 30 po de Hg.

CONT

Système à vide classique (vide 10-6 mm Hg).

Spanish

Campo(s) temático(s)
  • Mecánica de fluidos e hidráulica (Física)
Save record 3

Record 4 2003-04-24

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Soil Science
  • Hydrology and Hydrography
DEF

A measure of the force of water retention in unsaturated soil.

CONT

Soil suction is equal to a force per unit area that must be exceeded by an externally applied suction to initiate water flow from the soil. Soil suction is expressed in pounds per square inch.

CONT

Tensiometers measure soil tension. This is also often referred to as soil suction or vacuum. Soil tension is a measure of how tightly water is held in the soil, and is measured in pressure units of centibars (cb) or kilopascals (kPa). These are equivalent units. One hundred centibars equal approximately 15 psi. Soil tension increases as moisture in the soil is depleted. This force also draws water out of the tensiometer through its porous tip, creating a vacuum inside the tensiometer. This negative pressure, or tension, is registered on the tensiometer vacuum gauge. The soil tension measured with tensiometers is an indirect indication of soil moisture content and can be used as an indicator of irrigation need.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Science du sol
  • Hydrologie et hydrographie
CONT

L'augmentation de la densité du sol diminue la conductivité hydraulique pour des succions inférieures à -30 kPa.

Spanish

Save record 4

Record 5 2002-11-08

English

Subject field(s)
  • Printing Machines and Equipment
CONT

The wire runs over a breast roll under or adjacent to the headbox, over a series of tube or table rolls or more recently drainage blades, which maintain the working surface of the wire in a plane and aid water removal. The tubes or rolls create a vacuum on the downstream side of the nip. Similarly, the drainage blades create a vacuum on the downstream side where the wire leaves the blade surface, but also performs the function of a doctor blade on the upstream side.

French

Domaine(s)
  • Équipement (Imprimerie et arts graphiques)
CONT

Vide séparant les parties imprimantes d'un filet double maigre, on donne le nom au filet lui-même. Nom donné à la gorge de la tranche arrondie de la face avant d'une reliure ou d'un registre.

Spanish

Save record 5

Record 6 1981-01-26

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
  • Water Treatment (Water Supply)
  • Wastewater Treatment
CONT

... thanks to the depth of water above the filter bed, there is no vacuum at any point of the filter.

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
  • Traitement des eaux
  • Traitement des eaux usées
CONT

[...] il n'y a pas de passage sous vide d'un point quelconque du filtre, grâce à l'adoption d'une grande hauteur d'eau au-dessus du lit filtrant.

Spanish

Save record 6

Record 7 1976-06-19

English

Subject field(s)
  • Physics

French

Domaine(s)
  • Physique

Spanish

Save record 7

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