TERMIUM Plus®

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

BICONCAVE [9 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2016-06-21

English

Subject field(s)
  • Optical Glass
CONT

Another lens for high myopia is the biconcave lens. This lens is concave and ground on both the front and back surface ...

OBS

If the lens is biconcave ... a collimated beam of light passing through the lens is diverged (spread); the lens is thus called a negative or diverging lens.

French

Domaine(s)
  • Verres d'optique
OBS

biconcave : qui a deux surfaces concaves opposées.

Spanish

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Record 2 2014-07-18

English

Subject field(s)
  • Photography
  • Optics
DEF

An optical image from which rays of light only appear to diverge, without actually being focused there.

French

Domaine(s)
  • Photographie
  • Optique
CONT

[...] la lentille biconcave fait diverger ces rayons [parallèles] non sans donner naissance à une image virtuelle.

Spanish

Campo(s) temático(s)
  • Fotografía
  • Óptica
DEF

Imagen formada por haces procedentes de puntas del objeto cuyas prolongaciones, en sentido contrario a la marcha de la luz, después de atravesar el sistema óptico, convergen en las conjugados de aquellos, no pudiendo ser recogidos en una pantalla.

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Record 3 2013-07-30

English

Subject field(s)
  • Paleontology
DEF

A fossil foraminiferan of the genus Orbitolites, having a discoid shell.

French

Domaine(s)
  • Paléontologie
DEF

Foraminifère imperforé, à coquille circulaire légèrement biconcave, des terrains éocènes.

Spanish

Save record 3

Record 4 2012-10-15

English

Subject field(s)
  • Petrography
DEF

A large, concordant, typically layered igneous intrusion, of phano-convex or lenticular shape, that is sunken in its central part owing to sagging of the underlying country rock.

OBS

Lopoliths are to the basic rocks what batholiths are to the granites.

French

Domaine(s)
  • Pétrographie
DEF

[...] laccolite de grandes dimensions (celui de Sudbury a 50 km X 25 km) dont la partie centrale est affaissée en synclinal [...]

CONT

Le lopolite est [...] beaucoup plus étendu que le laccolite et présente généralement une différenciation verticale : roches basiques et minerais à la partie inférieure, granites à la partie supérieure.

CONT

[...] on connaît [...] des intrusions magmatiques beaucoup plus étendues [que les laccolites] : ce sont les lopolites, d’aspect tabulaire, dont le toit, au lieu d’être bombé, a tendance à être déprimé comme s’il avait fléchi.

CONT

[...] lopolite de grande dimension à forme de lentille biconcave.

Spanish

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Record 5 2011-01-07

English

Subject field(s)
  • Blood
  • Symptoms (Medicine)
DEF

A condition in which there are abnormally thick, almost spherical, red blood cells or spherocytes in the blood. This is seen most commonly in haemolytic spherocytic anaemia and acholuric jaundice.

French

Domaine(s)
  • Sang
  • Symptômes (Médecine)
CONT

La maladie de Minkowski-Chauffard ou sphérocytose héréditaire [est] une anémie hémolytique constitutionnelle liée à une anomalie de la membrane érythrocytaire. [Elle] est caractérisée par la présence de sphérocytes, c'est-à-dire des hématies denses, de petit diamètre, sans pâleur centrale, qui ont perdu leur forme biconcave pour devenir sphérique.

Spanish

Save record 5

Record 6 2010-07-22

English

Subject field(s)
  • Radiography (Medicine)
  • Musculoskeletal System
DEF

The biconcave deformities of a vertebral body resulting from collapse of the vertebral endplates. Most common in the lower thoracic and upper lumbar spine, these deformities are characteristic of disorders in which there is diffuse weakening of the bone, such as osteoporosis. A similar pattern may be seen in osteomalacia, Paget's disease, hyperparathyroidism, and neoplasm.

French

Domaine(s)
  • Radiographie (Médecine)
  • Appareil locomoteur (Médecine)
DEF

Vertèbre biconcave par déformation des plateaux, s’observant notamment dans l'ostéoporose et l'ostéomalacie.

Spanish

Save record 6

Record 7 2000-09-22

English

Subject field(s)
  • Hand Tools
  • Facilities and Equipment (Wood Industries)
DEF

A circular saw whose plate tapers, i.e. decreases gradually in thickness on both sides from the rim to near the centre (the collar), and therefore has concave surfaces.

OBS

The term saw in "hollow-ground saw" is to be interpreted as meaning "hollow ground blade".

Key term(s)
  • hollow ground saw
  • hollow ground blade

French

Domaine(s)
  • Outillage à main
  • Installations et équipement (Industr. du bois)
DEF

Lame équipant une scie circulaire dont les deux faces sont concaves, son épaisseur augmentant progressivement du centre vers la jante.

Key term(s)
  • lame rectifiée en creux
  • lame évidée

Spanish

Save record 7

Record 8 1999-08-10

English

Subject field(s)
  • Animal Anatomy

French

Domaine(s)
  • Anatomie animale
OBS

Anatomie comparée.

OBS

Les termes français sont des adjectifs.

Spanish

Save record 8

Record 9 1976-06-19

English

Subject field(s)
  • Optics

French

Domaine(s)
  • Optique

Spanish

Save record 9

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