TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
EYE WALL [9 records]
Record 1 - internal organization data 2023-09-22
Record 1, English
Record 1, Subject field(s)
- Atmospheric Physics
- Atmospheric, Climatic and Meteorological Phenomena
Record 1, Main entry term, English
- wall cloud
1, record 1, English, wall%20cloud
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
... the rotating, localized lowering of the cloud base beneath the rain-free portion of a thunderstorm that often precedes tornado development ... 2, record 1, English, - wall%20cloud
Record number: 1, Textual support number: 1 CONT
Wall clouds can range from a fraction of a mile up to nearly five miles in diameter, and normally are found on the south or southwest (inflow) side of the thunderstorm. Even though this cloud is lowering, it remains attached to the rain free cloud base of the thunderstorm. It is usually located south or southwest of the visible precipitation area, and marks the strongest updraft in the thunderstorm. The wall cloud develops as the strong updraft draws in surface moisture from several miles away. 3, record 1, English, - wall%20cloud
Record number: 1, Textual support number: 1 OBS
"Wall cloud" also is used occasionally in tropical meteorology to describe the inner cloud wall surrounding the eye of a tropical cyclone, but the proper term for this feature is "eyewall. " 3, record 1, English, - wall%20cloud
Record 1, French
Record 1, Domaine(s)
- Physique de l'atmosphère
- Phénomènes météorologiques, climatiques et atmosphériques
Record 1, Main entry term, French
- mur de nuages
1, record 1, French, mur%20de%20nuages
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- nuage-mur 2, record 1, French, nuage%2Dmur
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Le précurseur typique de la tornade est le mur de nuages. C'est une partie de la base du nuage qui semble s'abaisser vers le sol. On le trouve normalement sur le flanc arrière droit de l'orage. Autrement dit, si l'orage arrive de l'ouest, il faut regarder vers sa partie sud-ouest. Le mur de nuages se forme dans la zone sans précipitations et montre généralement un mouvement de rotation, sous la base du nuage. 3, record 1, French, - mur%20de%20nuages
Record 1, Key term(s)
- nuage mur
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Física de la atmósfera
- Fenómenos meteorológicos, climáticos y atmosféricos
Record 1, Main entry term, Spanish
- muro de nubes
1, record 1, Spanish, muro%20de%20nubes
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2023-09-21
Record 2, English
Record 2, Subject field(s)
- Atmospheric Physics
- Atmospheric, Climatic and Meteorological Phenomena
Record 2, Main entry term, English
- eyewall
1, record 2, English, eyewall
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- eye wall 2, record 2, English, eye%20wall
correct
- eyewall cloud 3, record 2, English, eyewall%20cloud
correct
- wall cloud 4, record 2, English, wall%20cloud
see observation
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The ring of thunderstorms that surrounds a storm’s eye. 5, record 2, English, - eyewall
Record number: 2, Textual support number: 1 OBS
The heaviest rain, strongest winds and worst turbulence are found in the eyewall. 5, record 2, English, - eyewall
Record number: 2, Textual support number: 2 OBS
"Wall cloud" also is used occasionally in tropical meteorology to describe the inner cloud wall surrounding the eye of a tropical cyclone, but the proper term for this feature is "eyewall. " 6, record 2, English, - eyewall
Record 2, Key term(s)
- eye wall cloud
Record 2, French
Record 2, Domaine(s)
- Physique de l'atmosphère
- Phénomènes météorologiques, climatiques et atmosphériques
Record 2, Main entry term, French
- mur de l'œil
1, record 2, French, mur%20de%20l%27%26oelig%3Bil
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Anneau d'orages qui encercle l'œil de la tempête. 2, record 2, French, - mur%20de%20l%27%26oelig%3Bil
Record number: 2, Textual support number: 1 OBS
C'est à cet endroit que se situent les pluies, les turbulences et les vents les plus forts. 2, record 2, French, - mur%20de%20l%27%26oelig%3Bil
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Física de la atmósfera
- Fenómenos meteorológicos, climáticos y atmosféricos
Record 2, Main entry term, Spanish
- pared del ojo
1, record 2, Spanish, pared%20del%20ojo
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2014-04-29
Record 3, English
Record 3, Subject field(s)
- Optical Instruments
- Surveillance, Detection and Reconnaissance (Military)
Record 3, Main entry term, English
- eye lane
1, record 3, English, eye%20lane
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- calibration lane 2, record 3, English, calibration%20lane
correct
- test lane 3, record 3, English, test%20lane
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
An educational program is not necessarily limited to classroom lectures but may also include use of an eye lane — in which a pilot stands at one side of a dark room and looks through NVGs at an eye chart on the opposite wall to learn to focus the goggles; a terrain board — a miniature layout of the type of terrain where the pilot will operate; or a simulator, as well as computer-based or Web-based training. 1, record 3, English, - eye%20lane
Record 3, French
Record 3, Domaine(s)
- Instruments d'optique
- Surveillance, détection et reconnaissance (Militaire)
Record 3, Main entry term, French
- couloir de calibrage
1, record 3, French, couloir%20de%20calibrage
proposal, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2012-11-21
Record 4, English
Record 4, Subject field(s)
- Atmospheric Physics
Record 4, Main entry term, English
- organized band of cumulonimbus clouds
1, record 4, English, organized%20band%20of%20cumulonimbus%20clouds
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- organised band of cumulonimbus clouds 1, record 4, English, organised%20band%20of%20cumulonimbus%20clouds
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
eyewall/wall cloud : An organized band or ring of cumulonimbus clouds that surround the eye, or light-wind center of a tropical cyclone. 1, record 4, English, - organized%20band%20of%20cumulonimbus%20clouds
Record 4, French
Record 4, Domaine(s)
- Physique de l'atmosphère
Record 4, Main entry term, French
- bande de cumulonimbus organisée
1, record 4, French, bande%20de%20cumulonimbus%20organis%C3%A9e
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2012-11-14
Record 5, English
Record 5, Subject field(s)
- Atmospheric Physics
Record 5, Main entry term, English
- inner eyewall
1, record 5, English, inner%20eyewall
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- internal eyewall 1, record 5, English, internal%20eyewall
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
Some of the outer rainbands may strengthen and organize into a ring of thunderstorms - an outer eyewall - that slowly moves inward and robs the inner eyewall of its needed moisture and angular momentum. 1, record 5, English, - inner%20eyewall
Record 5, Key term(s)
- inner eye wall
- internal eye wall
Record 5, French
Record 5, Domaine(s)
- Physique de l'atmosphère
Record 5, Main entry term, French
- mur de l'œil intérieur
1, record 5, French, mur%20de%20l%27%26oelig%3Bil%20int%C3%A9rieur
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Quand l'œil intérieur se forme, la convection qui entoure le mur de l'œil peut s'organiser en anneaux distincts. En fin de compte, l'œil intérieur commence à sentir les effets de la subsidence qui résulte du mur de l'œil externe, et le mur de l'œil intérieur s'affaiblit, pour être remplacé par le mur de l'œil externe. 1, record 5, French, - mur%20de%20l%27%26oelig%3Bil%20int%C3%A9rieur
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2012-11-07
Record 6, English
Record 6, Subject field(s)
- Atmospheric Physics
Record 6, Main entry term, English
- curved band of clouds
1, record 6, English, curved%20band%20of%20clouds
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
rainbands : Curved bands of clouds and thunderstorms that trail away from the eye wall in a spiral fashion. 1, record 6, English, - curved%20band%20of%20clouds
Record 6, French
Record 6, Domaine(s)
- Physique de l'atmosphère
Record 6, Main entry term, French
- bande incurvée de nuages
1, record 6, French, bande%20incurv%C3%A9e%20de%20nuages
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2012-10-31
Record 7, English
Record 7, Subject field(s)
- Atmospheric Physics
Record 7, Main entry term, English
- concentric eyewall
1, record 7, English, concentric%20eyewall
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
The concentric eyewall is often observed in intense hurricanes. The small inner eyewall could be replaced by an outer one. Such eyewall replacement may result in a rapid change in intensity. It is still not clear how the concentric eyewall forms and how it replaces the inner eyewall. 1, record 7, English, - concentric%20eyewall
Record 7, Key term(s)
- concentric eye wall
Record 7, French
Record 7, Domaine(s)
- Physique de l'atmosphère
Record 7, Main entry term, French
- mur de l'œil concentrique
1, record 7, French, mur%20de%20l%27%26oelig%3Bil%20concentrique
correct, masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
- mur concentrique 1, record 7, French, mur%20concentrique
correct, masculine noun
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
Quelques-uns des cyclones les plus intenses exhibent deux, voire même plusieurs murs de l'œil concentriques [...] Quand l'œil intérieur se forme, la convection qui entoure le mur de l'œil peut s'organiser en anneaux distincts. 1, record 7, French, - mur%20de%20l%27%26oelig%3Bil%20concentrique
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2008-10-09
Record 8, English
Record 8, Subject field(s)
- Chimneys (Building Elements)
Record 8, Main entry term, English
- firebox surround
1, record 8, English, firebox%20surround
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
- surround 1, record 8, English, surround
correct, noun
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
The assembly of claim 1 wherein the firebox of the fireplace unit has an interior volume of a first shape, and the fireplace unit further includes a surround contained in the firebox and shaped to define a second volume that has a second shape different from the first shape. ... The assembly of claim 2 wherein the firebox of the fireplace unit is defined by a plurality of interconnected walls, and the fireplace unit further includes a firebox surround in the firebox and spaced apart from the interconnected walls. 1, record 8, English, - firebox%20surround
Record number: 8, Textual support number: 2 CONT
A direct vent fireplace installation assembly is provided that includes a furniture unit having an enlarged receptacle well above the ground, and a direct vent fireplace unit positioned in the receptacle of the furniture unit. The fireplace unit ahs a firebox contained in an outer housing, a burner assembly in the firebox, and a contoured surround, surrounding the burner positioned in and spaced apart from walls of the firebox. A chimney is coupled to the firebox. In one embodiement, the fireplace unit is mounted in a receptacle in a wall structure positioned above the floor, at approximately eye level. There may be a heat exchange passageway between the outer housing and the firebox, and a blower for circulating air therethrough. 2, record 8, English, - firebox%20surround
Record 8, French
Record 8, Domaine(s)
- Cheminées (Éléments du bâtiment)
Record 8, Main entry term, French
- enceinte pour âtre de cheminée
1, record 8, French, enceinte%20pour%20%C3%A2tre%20de%20chemin%C3%A9e
proposal, feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 OBS
enceinte pour âtre de cheminée : terme proposé (sous toutes réserves) par inférence à partir de la justification complémentaire reproduite ci-après. 1, record 8, French, - enceinte%20pour%20%C3%A2tre%20de%20chemin%C3%A9e
Record number: 8, Textual support number: 2 OBS
Une enceinte 31 encastrée dans l'âtre de la cheminée. 2, record 8, French, - enceinte%20pour%20%C3%A2tre%20de%20chemin%C3%A9e
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2006-02-22
Record 9, English
Record 9, Subject field(s)
- Visual Disorders
Record 9, Main entry term, English
- vitreous floater
1, record 9, English, vitreous%20floater
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
- floater 2, record 9, English, floater
correct
- muscae volitantes 1, record 9, English, muscae%20volitantes
correct
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
Floaters are entoptic images of opacities in the vitreous. Entoptic image is a visual perception that is produced by structures within the eye-in this case vitreous opacities. Patients complain of small specks or dots that can be seen against a bright background such as a diffusely illuminated wall or the blue sky. Sometimes fine dark lines in amorphous mass-like small branching twigs-are seen. These floaters move around and are also called ’muscae volitantes’ because they seem to dart about like flies as the eye is moved. 1, record 9, English, - vitreous%20floater
Record number: 9, Textual support number: 1 OBS
The vitreous is a jelly like substance which changes consistency as we age. This change causes the vitreous to separate from the retina. When this happens, the back of the vitreous can be seen as a floater. Most people describe this as a spider web or floating speck. High myopia and trauma can make vitreous separations occur earlier. 1, record 9, English, - vitreous%20floater
Record number: 9, Textual support number: 2 OBS
The terms "vitreous floater" and "floater" are usually used in the plural. 3, record 9, English, - vitreous%20floater
Record 9, Key term(s)
- vitreous floaters
- floaters
Record 9, French
Record 9, Domaine(s)
- Troubles de la vision
Record 9, Main entry term, French
- corps flottant du vitré
1, record 9, French, corps%20flottant%20du%20vitr%C3%A9
correct, masculine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
- corps flottant 2, record 9, French, corps%20flottant
correct, masculine noun
- muscae volitantes 3, record 9, French, muscae%20volitantes
correct, masculine noun
Record 9, Textual support, French
Record number: 9, Textual support number: 1 DEF
Opacités troublant la transparence du vitré. 2, record 9, French, - corps%20flottant%20du%20vitr%C3%A9
Record number: 9, Textual support number: 1 CONT
La présence des corps flottants est due à l'agglomération d'éléments d'origine embryonnaire ou pathologique (décollement de rétine, décollement du vitré par exemple). Les mouvements du globe oculaire les rendent perceptibles par le sujet, sous la forme de corpuscules mobiles. La présence de corps flottants est courante dans les yeux sains des personnes âgées. 2, record 9, French, - corps%20flottant%20du%20vitr%C3%A9
Record number: 9, Textual support number: 1 OBS
Les termes «corps flottant du vitré» et «corps flottant» sont habituellement utilisés au pluriel. 4, record 9, French, - corps%20flottant%20du%20vitr%C3%A9
Record 9, Key term(s)
- corps flottants du vitré
- corps flottants
Record 9, Spanish
Record 9, 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: