TERMIUM Plus®

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

TETRAHEDRON [7 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2022-10-28

English

Subject field(s)
  • Antique and Obsolete Weapons
DEF

A four-spiked iron ball or four joined spikes laid upon the ground as a device to lame cavalry horses, puncture tyres, etc.

CONT

Caltrops are constructed so that when strewn on the ground, one point is always straight up (supported on three "feet"). They were used to prevent the advance of cavalry, to protect a defense perimeter, and to make a ford impassable and were hurled onto the decks of enemy ships.

OBS

caltrop; tetrahedron: terms officially approved by the Engineering Terminology Working Group.

French

Domaine(s)
  • Armes anciennes
OBS

chausse-trappe; tétraèdre : termes uniformisés par le Groupe de travail de terminologie du génie.

Spanish

Save record 1

Record 2 2016-04-05

English

Subject field(s)
  • Place Names (Canada)
OBS

A provincial park northeast of Sechelt.

OBS

Coordinates: 49° 35' 41" N, 123° 35' 36" W (British Columbia).

French

Domaine(s)
  • Toponymes (Canada)
OBS

Parc provincial au nord-est de Sechelt.

OBS

Coordonnées : 49° 35' 41" N, 123° 35' 36" O (Colombie-Britannique).

Spanish

Save record 2

Record 3 2013-01-31

English

Subject field(s)
  • Fires and Explosions
DEF

The model of the four elements/conditions required to have a fire.

OBS

The four sides of the tetrahedron represent fuel, heat, oxygen ... and chemical chain reaction.

French

Domaine(s)
  • Feux et explosions
DEF

Modèle des quatre éléments/conditions nécessaires à la combustion.

OBS

Les quatre côtés du tétraèdre représentent le combustible, la chaleur, l'oxygène et la réaction chimique en chaîne.

Spanish

Save record 3

Record 4 2011-02-09

English

Subject field(s)
  • Mineralogy
DEF

A crystal form, in the isometric system, enclosed by four faces having equal intercepts on all three axes.

CONT

Alkali feldspars are framework aluminosilicates composed of SiO4 and AlO4 tetrahedra, each of which shares all four of its apical oxygen atoms with neighboring tetrahedra.

OBS

Plural: tetrahedra.

Key term(s)
  • tetrahedra

French

Domaine(s)
  • Minéralogie

Spanish

Campo(s) temático(s)
  • Mineralogía
Save record 4

Record 5 2004-12-14

English

Subject field(s)
  • Mechanics
  • Industrial Tools and Equipment
  • Food Industries

French

Domaine(s)
  • Mécanique
  • Outillage industriel
  • Industrie de l'alimentation

Spanish

Save record 5

Record 6 2001-03-14

English

Subject field(s)
  • Aircraft Piloting and Navigation
CONT

Preparatory to landing at an uncontrolled airport, the pilot should be concerned with landing direction indications on the airport. Such indicators include wind socks, wind tees, tetrahedrons, traffic pattern indicators, and the direction of other fixed-wing operations.

OBS

landing tetrahedron: term officially approved by the International Civil Aviation Organization (ICAO).

French

Domaine(s)
  • Pilotage et navigation aérienne
OBS

tétraèdre d'atterrissage : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Pilotaje y navegación aérea
OBS

tetraedro de aterrizaje : término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI).

Save record 6

Record 7 1999-05-19

English

Subject field(s)
  • Mathematics
  • Computer Graphics
DEF

A solid figure with four triangular faces.

French

Domaine(s)
  • Mathématiques
  • Infographie
DEF

Polyèdre à quatre faces triangulaires.

Spanish

Save record 7

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