TERMIUM Plus®
From: Translation Bureau
On social media
Consult the Government of Canada’s terminology data bank.
UNUSUAL HAZARD [4 records]
Record 1 - internal organization data 2026-02-26
Record 1, English
Record 1, Subject field(s)
- Meteorological Forecasting, Data Measurement and Analysis
- Glaciology
- River and Sea Navigation
- Safety (Water Transport)
Record 1, Main entry term, English
- special ice warning
1, record 1, English, special%20ice%20warning
correct, noun
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
A special ice warning will be issued for the following situations : when one tenth or more of grey-white ice or older is expected to be in an area when ice is not normally present; [when there is] any unusual or significant ice event that is or could present a hazard to navigation. 1, record 1, English, - special%20ice%20warning
Record 1, French
Record 1, Domaine(s)
- Prévisions météorologiques et mesure et analyse des données
- Glaciologie
- Navigation fluviale et maritime
- Sécurité (Transport par eau)
Record 1, Main entry term, French
- avertissement spécial des glaces
1, record 1, French, avertissement%20sp%C3%A9cial%20des%20glaces
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
On émet un avertissement spécial des glaces pour les situations suivantes : quand on prévoit qu'un dixième ou plus de glace blanchâtre ou plus vieille devrait être dans une zone où des glaces ne sont normalement pas présentes; quand un phénomène glaciel inhabituel ou significatif présente ou pourrait présenter un danger pour la navigation. 1, record 1, French, - avertissement%20sp%C3%A9cial%20des%20glaces
Record 1, Key term(s)
- avertissement spécial de glace
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2023-05-16
Record 2, English
Record 2, Subject field(s)
- Mathematics, Physics and Natural Sciences
- Electronics and Informatics
- Medicine and Health
- Industries
Record 2, Main entry term, English
- high aspect ratio nanoparticle
1, record 2, English, high%20aspect%20ratio%20nanoparticle
correct
Record 2, Abbreviations, English
- HARN 1, record 2, English, HARN
correct
Record 2, Synonyms, English
- high-aspect-ratio nanoparticle 2, record 2, English, high%2Daspect%2Dratio%20nanoparticle
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
High aspect ratio, or fiber-shaped, nanoparticles(HARNs), represent a growth area in nanotechnology as their useful properties become more apparent. Carbon nanotubes, the best known and studied of the HARNs, are handled on an increasingly large scale, with subsequent potential for human inhalation exposure. Their resemblance to asbestos fibers precipitated fears that they might show the same type of pathology as that caused by asbestos and there is emerging evidence to support this possibility. The large number of other HARNs, including nanorods, nanowires and other nanofibers, require similar toxicological scrutiny. In this article, we describe the unusual hazard associated with fibers, with special reference to asbestos, and address the features of fibers that dictate their pathogenicity as developed in the fiber pathogenicity paradigm. This paradigm is a robust structure-toxicity model that identifies thin, long, biopersistent fibers as the effective dose for fiber-type pathogenic effects. It is likely that HARNs will in general conform to the paradigm and such an understanding of the features that make fibers pathogenic should enable us to design safer HARNs. 3, record 2, English, - high%20aspect%20ratio%20nanoparticle
Record number: 2, Textual support number: 2 CONT
(Nanowerk News) A UK consortium of scientists, led by the Institute of Occupational Medicine, Edinburgh, has published a key report examining whether high aspect ratio nanoparticles (HARN) should raise the same concerns as asbestos fibres. HARN includes materials such as carbon nanotubes (CNT) and metal nanowires. The review, which was published by DEFRA [Department for Environment, Food and Rural Affairs] this week, identified many similarities between HARN and asbestos with regard to their physico-chemical properties and toxicological effects, and it concluded that there is sufficient evidence to suggest that HARN, which have the same characteristics (diameter, length and biopersitance) as pathogenic fibres such as asbestos, are likely to have similar pathology. 4, record 2, English, - high%20aspect%20ratio%20nanoparticle
Record number: 2, Textual support number: 1 OBS
HARNs: plural. 2, record 2, English, - high%20aspect%20ratio%20nanoparticle
Record 2, Key term(s)
- high aspect ratio nano-particle
- hi aspect ratio nano-particle
- hi aspect ratio nanoparticle
- HARNs
Record 2, French
Record 2, Domaine(s)
- Mathématiques, physique et sciences naturelles
- Électronique et informatique
- Médecine et santé
- Industries
Record 2, Main entry term, French
- nanoparticule à rapport d'élongation élevé
1, record 2, French, nanoparticule%20%C3%A0%20rapport%20d%27%C3%A9longation%20%C3%A9lev%C3%A9
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- nanoparticule à rapport d'allongement élevé 1, record 2, French, nanoparticule%20%C3%A0%20rapport%20d%27allongement%20%C3%A9lev%C3%A9
correct, feminine noun
- nanoparticule à rapport d'aspect élevé 1, record 2, French, nanoparticule%20%C3%A0%20rapport%20d%27aspect%20%C3%A9lev%C3%A9
correct, feminine noun
- nanoparticule à rapport longueur/diamètre élevé 1, record 2, French, nanoparticule%20%C3%A0%20rapport%20longueur%2Fdiam%C3%A8tre%20%C3%A9lev%C3%A9
correct, feminine noun
- nanoparticule à fort aspect ratio 2, record 2, French, nanoparticule%20%C3%A0%20fort%20aspect%20ratio
feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Les nano-objets sont des structures fabriquées volontairement dont une, deux ou trois dimensions extérieures sont de l’ordre nanométrique (entre 1 et 100 nm environ). Les nanoparticules et les nanofibres (respectivement trois et deux dimensions extérieures nanométriques) sont deux catégories importantes de nano-objets. Les nanoparticules sont obtenues par réduction de grosses particules ou par synthèse. Les nanofibres peuvent également avoir une forme tubulaire, tels les nanotubes de carbone; ces derniers peuvent être monoparoi (ou monofeuillet, SWCNT en anglais pour Single-Walled Carbon Nanotubes) ou multiparois (ou multifeuillets, MWCNT en anglais pour Multi-Walled Carbon Nanotubes). Pour les nanofibres, lorsque le rapport entre la longueur et le diamètre est élevé, on parle de nanoparticules à fort aspect ratio (HARN en anglais pour High Aspect Ratio Nanoparticles). 2, record 2, French, - nanoparticule%20%C3%A0%20rapport%20d%27%C3%A9longation%20%C3%A9lev%C3%A9
Record number: 2, Textual support number: 1 OBS
Le diamètre des nanoparticules varie du nanomètre à quelques dizaines de nanomètres, et leur longueur, du micromètre à plusieurs millimètres. Ces dimensions leur confèrent un rapport d'élongation (longueur sur diamètre) élevé, ainsi que des propriétés toxicologiques similaires à celles de l'amiante. 1, record 2, French, - nanoparticule%20%C3%A0%20rapport%20d%27%C3%A9longation%20%C3%A9lev%C3%A9
Record 2, Key term(s)
- nano-particule à rapport longueur/diamètre élevé
- nano-particule à rapport d'aspect élevé
- nano-particule à rapport d'élongation élevé
- nano-particule à fort aspect ratio
- nano-particule à rapport d'allongement élevé
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2008-07-23
Record 3, English
Record 3, Subject field(s)
- Road Safety
Record 3, Main entry term, English
- point of perception
1, record 3, English, point%20of%20perception
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The time and place at which the individual actually first perceived... the hazard, that is, the unusual or unexpected movement or condition that could be taken as a sign of the accident about to occur. 2, record 3, English, - point%20of%20perception
Record 3, French
Record 3, Domaine(s)
- Sécurité routière
Record 3, Main entry term, French
- point de perception
1, record 3, French, point%20de%20perception
masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
La reconstitution de cet accident a permis de déterminer que la vitesse excessive du véhicule était le facteur dominant. Toutefois, la remorque agricole n'avait pas de réflecteurs rouges conformes aux normes requises par l'article 240.2 du Code de la sécurité routière. Le test de visibilité effectué sur la remorque a déterminé que le point de perception était de 90 m. Le même test effectué avec la remorque équipée de réflecteurs rouges conformes a permis de démontrer qu'il n'y aurait pas eu d'incidence sur le résultat, car le point de perception possible était seulement à 5 m plus loin. 1, record 3, French, - point%20de%20perception
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 1991-12-20
Record 4, English
Record 4, Subject field(s)
- Security
- Transport of Goods
- Occupational Health and Safety
Record 4, Main entry term, English
- unusual hazard
1, record 4, English, unusual%20hazard
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record 4, French
Record 4, Domaine(s)
- Sécurité
- Transport de marchandises
- Santé et sécurité au travail
Record 4, Main entry term, French
- danger inhabituel
1, record 4, French, danger%20inhabituel
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- risque inhabituel 2, record 4, French, risque%20inhabituel
correct, proposal, masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Danger inhabituel : phosphore rouge (inflammation spontanée d'un solide). 1, record 4, French, - danger%20inhabituel
Record 4, Spanish
Record 4, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
GCtranslate (available on the Government of Canada network only)
Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.
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:


