TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
ANTERODORSAL [3 records]
Record 1 - internal organization data 2003-10-10
Record 1, English
Record 1, Subject field(s)
- Morphology and General Physiology
Record 1, Main entry term, English
- anterodorsal
1, record 1, English, anterodorsal
correct, adjective
Record 1, Abbreviations, English
Record 1, Synonyms, English
- antero-dorsal 2, record 1, English, antero%2Ddorsal
correct, adjective
Record 1, Textual support, English
Record 1, French
Record 1, Domaine(s)
- Morphologie et physiologie générale
Record 1, Main entry term, French
- antéro-dorsal
1, record 1, French, ant%C3%A9ro%2Ddorsal
correct, adjective
Record 1, Abbreviations, French
Record 1, Synonyms, French
- antérodorsal 2, record 1, French, ant%C3%A9rodorsal
correct, adjective
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Situé sur la partie antérieure du dos [...] 3, record 1, French, - ant%C3%A9ro%2Ddorsal
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2003-06-17
Record 2, English
Record 2, Subject field(s)
- Paleontology
Record 2, Main entry term, English
- torsion
1, record 2, English, torsion
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
(...) the process of "torsion" involves a rotation of the mantle [of a young prosobranch gastropod], and [the] juvenile shell, with its enclosed viscera, through an angle of 180 degrees in relation to the velum(from which the head later develops) and the foot. As a result the mantle cavity comes to occupy an anterodorsal position, while the coiling of the shell assumes the endogastric direction typical of the adult gastropod. Effects of this torsion on the cells from which various organs of the adult animal later arise are far-reaching. Thus, when they develop, the nerve cords connecting the cerebral and pleural to the visceral ganglia are found to be crossed(...) rather like a figure 8, instead of being parallel. The gut has been twisted into a loop. It is, moreover obvious that the positions of the left and right ctenidia, osphradia, hypobranchial glands, heart auricles, and kidneys of the ancestral untorqued form become transposed as the result of torsion, so that when, as in most prosobranchs, only one of each of these organs remains, this, although now on the 6ft-hand side, represents the original right-hand organ. 1, record 2, English, - torsion
Record 2, French
Record 2, Domaine(s)
- Paléontologie
Record 2, Main entry term, French
- torsion
1, record 2, French, torsion
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
[...] à la suite de [la] flexure [anopédieuse] amenant le sac viscéral vers l'avant, et avec lui le manteau qui l'enveloppe ainsi que la cavité palléale qui les sépare et contient les branchies, les Gastéropodes subissent une "torsion" de 180 degrés amenant le complexe palléal en position antéro-latérale, et se continuant par la progressive torsion spirale des viscères, du muscle columellaire et de la coquille [...]. Cette torsion non seulement affecte le sac viscéral et la coquille qui moule le manteau en leur imprimant une forme hélicoïdale, mais entraîne aussi le "chiasma" du système nerveux dont les ganglions, initialement placés à droite, vont prendre une position topographique gauche et "vice versa". Et surtout, la principale conséquence de la torsion hélicoïdale est d'avoir transformé les Gastéropodes en animaux dissymétriques: l'étude des parties molles prouve que les organes pairs du côté droit (côté gauche originel) sont plus petits que ceux du côté gauche, et peuvent même s'atrophier et disparaître. 2, record 2, French, - torsion
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Paleontología
Record 2, Main entry term, Spanish
- torsión
1, record 2, Spanish, torsi%C3%B3n
feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1977-08-23
Record 3, English
Record 3, Subject field(s)
- Paleontology
Record 3, Main entry term, English
- eye tubercle
1, record 3, English, eye%20tubercle
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- ocular spot 2, record 3, English, ocular%20spot
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 OBS
[It is a] polished transparent rounded protuberance in [the] anterodorsal region of [an ostracode] valve forming [the] lens of [the] eye... or marking [the] inferred position of [the] eye... 1, record 3, English, - eye%20tubercle
Record 3, French
Record 3, Domaine(s)
- Paléontologie
Record 3, Main entry term, French
- tache oculaire
1, record 3, French, tache%20oculaire
correct
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
Les yeux sont à l'intérieur de la carapace [d'un Ostracode], dans sa partie antéro-dorsale où les valves présentent des "taches oculaires" transparentes à l'état vivant. 1, record 3, French, - tache%20oculaire
Record 3, Spanish
Record 3, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.
- Date Modified: