TERMIUM Plus®

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

HOLOEDRIQUE [4 records]

Record 1 2005-07-05

English

Subject field(s)
  • Mineralogy
DEF

Said of that crystal class having the maximum symmetry possible in each crystal system. Such a class is also called the "normal class".

French

Domaine(s)
  • Minéralogie
CONT

[...] dans toutes les formes qui se rattachent à un système cristallin, il y en a une qui respecte toutes les symétries attachées au système; cette forme sera dite «holoédrique».

Spanish

Campo(s) temático(s)
  • Mineralogía
DEF

Dícese de los cristales que [tienen] todos los elementos de simetría permitidos por su sistema cristalino [...]

Save record 1

Record 2 1977-05-18

English

Subject field(s)
  • Mineralogy
OBS

"Ditetragonal dipyramid" (...) is composed of sixteen triangular faces, each of which intersects all three of the crystallographic axes, cutting the two horizontal axes at different lengths. (...) Several common minerals crystallize in the ditetragonal-dipyramidal class. Major representatives are rutile, anatase, cassiterite, apophyllite zircon, and idocrase.

French

Domaine(s)
  • Minéralogie
OBS

[Une autre forme holoédrique du système tétragonal est] la "bipyramide octogonale"(...) avec seize faces, huit supérieures et huit inférieures, qui convergent en deux extrémités, une supérieure et une inférieure.

Spanish

Save record 2

Record 3 1977-05-18

English

Subject field(s)
  • Mineralogy
OBS

tetrahexahedron is composed of twenty-four isosceles triangular faces, each of which intersects one axis at unity and the second at some multiple and is parallel to the third.

French

Domaine(s)
  • Minéralogie
OBS

[Une autre forme holoédrique] du système cubique [est] le tétrahexaèdre"(ou "cube pyramidé")(...) avec vingt-quatre faces de triangles isocèles(...)

Spanish

Save record 3

Record 4 1977-05-18

English

Subject field(s)
  • Mineralogy
OBS

The trapezohedron is composed of 24 trapezium-shaped faces, each of which intersects one of the crystallographic axes at unity and the other two at equal multiples.

French

Domaine(s)
  • Minéralogie
OBS

[Une autre forme] holoédrique du système cubique [est] l'«icositétraèdre»(appelé improprement «trapézoèdre»), avec vingt-quatre faces de deltoïdes, qui se présente fréquemment dans les grenats [...]

Spanish

Save record 4

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