TERMIUM Plus®
From: Translation Bureau
On social media
Consult the Government of Canada’s terminology data bank.
HEAD-END [4 records]
Record 1 - internal organization data 2023-02-21
Record 1, English
Record 1, Subject field(s)
- Protection of Property
- IT Security
Record 1, Main entry term, English
- offline access control
1, record 1, English, offline%20access%20control
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- stand-alone access control 2, record 1, English, stand%2Dalone%20access%20control
correct
- standalone access control 3, record 1, English, standalone%20access%20control
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
There are many openings in the hospital that do not require high security. Offline access control often suffices to prevent unauthorized access without connecting to a large head-end system. 4, record 1, English, - offline%20access%20control
Record 1, Key term(s)
- off-line access control
- off line access control
- stand alone access control
Record 1, French
Record 1, Domaine(s)
- Sécurité des biens
- Sécurité des TI
Record 1, Main entry term, French
- contrôle d'accès hors ligne
1, record 1, French, contr%C3%B4le%20d%27acc%C3%A8s%20hors%20ligne
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- contrôle d'accès autonome 1, record 1, French, contr%C3%B4le%20d%27acc%C3%A8s%20autonome
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
[Dans le cas du] contrôle d'accès autonome (ou contrôle d'accès hors ligne)[,] la base de données des utilisateurs est stockée sur un lecteur ou un clavier installé sur la porte elle-même, et chaque lecteur ou clavier ne contrôle qu'une seule porte. 1, record 1, French, - contr%C3%B4le%20d%27acc%C3%A8s%20hors%20ligne
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2019-06-21
Record 2, English
Record 2, Subject field(s)
- Rolling Stock (Railroads)
- Freight Service (Rail Transport)
Record 2, Main entry term, English
- special-purpose caboose
1, record 2, English, special%2Dpurpose%20caboose
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- specialized caboose 2, record 2, English, specialized%20caboose
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
The train was composed of 5 head-end locomotives, a special-purpose caboose equipped to remotely control the locomotives, 1 loaded boxcar used as a buffer car, and 72 US Department of Transportation(DOT) Specification 111 general service tank cars(DOT-111) … 3, record 2, English, - special%2Dpurpose%20caboose
Record 2, Key term(s)
- specialised caboose
Record 2, French
Record 2, Domaine(s)
- Matériel roulant (Chemins de fer)
- Trafic marchandises (Transport par rail)
Record 2, Main entry term, French
- fourgon spécialisé
1, record 2, French, fourgon%20sp%C3%A9cialis%C3%A9
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2018-09-14
Record 3, English
Record 3, Subject field(s)
- Rail Transport Operations
- Railroad Safety
Record 3, Main entry term, English
- bottling the air
1, record 3, English, bottling%20the%20air
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
While setting off the cars at Maxville, the conductor closed the angle cocks on the adjoining ends of the cars to be separated and did not vent the air, leaving the air brake line charged on the 74 cars left unattended on the main line. This practice is known in the industry as "bottling the air. "During a train service brake application, the head-end air brake pipe pressure is reduced below the tail-end air brake pipe pressure, creating a pressure differential. When the angle cock on a car is closed before the air pressure equalizes in the brake pipe, a pressure wave is created. This wave can initiate a brake release on the car, which will then cause the brakes to release on subsequent cars. 1, record 3, English, - bottling%20the%20air
Record 3, French
Record 3, Domaine(s)
- Exploitation (Transport par rail)
- Sécurité (Transport par rail)
Record 3, Main entry term, French
- emprisonnement de l'air
1, record 3, French, emprisonnement%20de%20l%27air
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- embouteillage de l'air 2, record 3, French, embouteillage%20de%20l%27air
masculine noun, jargon
- mise en bouteille de l'air 3, record 3, French, mise%20en%20bouteille%20de%20l%27air
feminine noun, jargon
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
Cette pratique peut déclencher le desserrage du frein à air. 4, record 3, French, - emprisonnement%20de%20l%27air
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Explotación (Transporte ferroviario)
- Seguridad (Transporte ferroviario)
Record 3, Main entry term, Spanish
- embotellado del aire
1, record 3, Spanish, embotellado%20del%20aire
proposal, masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
- embotellamiento del aire 1, record 3, Spanish, embotellamiento%20del%20aire
proposal, masculine noun
Record 3, Textual support, Spanish
Record 4 - internal organization data 2016-11-23
Record 4, English
Record 4, Subject field(s)
- Nuclear Power Stations
Record 4, Main entry term, English
- head-end 1, record 4, English, head%2Dend
Record 4, Abbreviations, English
Record 4, Synonyms, English
- head-end unit 2, record 4, English, head%2Dend%20unit
Record 4, Textual support, English
Record number: 4, Textual support number: 1 OBS
head-end unit : term extracted from the “Glossaire de l'énergie nucléaire” and reproduced with permission of the Organisation for Economic Co-operation and Development. 3, record 4, English, - head%2Dend
Record 4, French
Record 4, Domaine(s)
- Centrales nucléaires
Record 4, Main entry term, French
- unité de tête
1, record 4, French, unit%C3%A9%20de%20t%C3%AAte
feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- tête d'usine 2, record 4, French, t%C3%AAte%20d%27usine
feminine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
[...] entre temps une nouvelle unité de tête a été ajoutée à l'usine UP2(HAO - Haute Activité Oxyde) et mise en service en 1976 pour permettre le retraitement du combustible oxyde de type réacteurs à eau légère. 1, record 4, French, - unit%C3%A9%20de%20t%C3%AAte
Record number: 4, Textual support number: 1 OBS
tête d'usine : terme extrait du «Glossaire de l’énergie nucléaire» et reproduit avec l’autorisation de l’Organisation de coopération et de développement économiques. 3, record 4, French, - unit%C3%A9%20de%20t%C3%AAte
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:


