TERMIUM Plus®
From: Translation Bureau
On social media
Consult the Government of Canada’s terminology data bank.
CYCLE 4 TEMPS [5 records]
Record 1 - internal organization data 2021-10-05
Record 1, English
Record 1, Subject field(s)
- Animal Biology
- Respiratory System
- Animal Behaviour
Record 1, Main entry term, English
- opercular pump
1, record 1, English, opercular%20pump
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record 1, French
Record 1, Domaine(s)
- Biologie animale
- Appareil respiratoire
- Comportement animal
Record 1, Main entry term, French
- pompe operculaire
1, record 1, French, pompe%20operculaire
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La ventilation des branchies chez un téléostéen. [...] Pendant l'étape 3, la pompe operculaire entame sa phase de pression, les valves operculaires s’ouvrent, de l'eau sort par les ouïes. En même temps, la pression augmente encore plus dans la cavité buccale. [...] À la fin du cycle, pendant l'étape 4 [...], la pompe buccale commence la phase d’aspiration, la bouche s’ouvre, alors que la pompe operculaire pousse toujours. 1, record 1, French, - pompe%20operculaire
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2019-11-25
Record 2, English
Record 2, Subject field(s)
- Engines (Motor Vehicles)
Record 2, Main entry term, English
- rotor
1, record 2, English, rotor
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
The four cycles ... go on simultaneously around the rotor when the [rotary] engine is running ... there are three power cycles for each rotor revolution and the engine is delivering power almost continuously. 2, record 2, English, - rotor
Record 2, French
Record 2, Domaine(s)
- Moteur (Véhicules automobiles)
Record 2, Main entry term, French
- rotor
1, record 2, French, rotor
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- piston rotatif 2, record 2, French, piston%20rotatif
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Le moteur à piston rotatif [...] Le piston rotatif (rotor) déplace ses sommets dans le stator, ou carter, suivant une courbe spéciale (trochoïde). 2, record 2, French, - rotor
Record number: 2, Textual support number: 2 CONT
Les opérations du cycle à 4 temps s’y déroulent sur chaque face du piston à mesure de sa rotation [...] à chaque passage d’une face du rotor devant la bougie, il y a une étincelle, donc trois combustions par tour de rotor. 3, record 2, French, - rotor
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Motores (Vehículos automotores)
Record 2, Main entry term, Spanish
- émbolo rotativo
1, record 2, Spanish, %C3%A9mbolo%20rotativo
correct, masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 CONT
En [ciertos] motores las funciones del émbolo incumben a un órgano de movimiento giratorio y continuo, sin alternancia ni cambio de sentido. A dicho órgano se le da, por extensión, el nombre de émbolo rotativo. 1, record 2, Spanish, - %C3%A9mbolo%20rotativo
Record 3 - internal organization data 2017-07-12
Record 3, English
Record 3, Subject field(s)
- Motors (Machinery)
Record 3, Main entry term, English
- four-stroke cycle
1, record 3, English, four%2Dstroke%20cycle
correct, officially approved
Record 3, Abbreviations, English
Record 3, Synonyms, English
- Otto cycle 2, record 3, English, Otto%20cycle
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A constant volume cycle of events used to explain the energy transformation that takes place in a reciprocating engine. 3, record 3, English, - four%2Dstroke%20cycle
Record number: 3, Textual support number: 1 OBS
Alphonse Beau de Rochas, a French engineer (1815-1893), ... created the ideal thermodynamic cycle of the 4-stroke engine (1862). Its cycle was implemented by Nicolaus Otto. Hence, the French use "cycle de Beau Rochas" but "Otto cycle" is more commonly used, especially in North America. 4, record 3, English, - four%2Dstroke%20cycle
Record number: 3, Textual support number: 2 OBS
The four strokes of a cycle are intake, compression, power and exhaust. 4, record 3, English, - four%2Dstroke%20cycle
Record number: 3, Textual support number: 3 OBS
four-stroke cycle: term officially approved by the Lexicon Project Committee (New Brunswick). 4, record 3, English, - four%2Dstroke%20cycle
Record 3, Key term(s)
- 4-stroke cycle
Record 3, French
Record 3, Domaine(s)
- Moteurs mécaniques
Record 3, Main entry term, French
- cycle à quatre temps
1, record 3, French, cycle%20%C3%A0%20quatre%20temps
correct, masculine noun, officially approved
Record 3, Abbreviations, French
Record 3, Synonyms, French
- cycle d'Otto 2, record 3, French, cycle%20d%27Otto
correct, masculine noun
- cycle Beau de Rochas 3, record 3, French, cycle%20Beau%20de%20Rochas
correct, masculine noun, France, officially approved
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
Alphonse Beau de Rochas, [était un] ingénieur français(1815-1908). Il établit le cycle thermodynamique idéal des moteurs à explosion à quatre temps(1862) à allumage commandé. [...] Nicolaus Otto était un ingénieur allemand(1832-1891) qui industrialisa le premier moteur 4 temps suivant le principe de Beau de Rochas. Ce cycle théorique est la base du moteur 4 temps à allumage commandé dans lequel la combustion se produit à volume constant. 2, record 3, French, - cycle%20%C3%A0%20quatre%20temps
Record number: 3, Textual support number: 2 OBS
L’expérience se déroule en quatre phases successives : admission des gaz, compression du mélange gazeux, explosion, échappement des gaz brûlés. 4, record 3, French, - cycle%20%C3%A0%20quatre%20temps
Record number: 3, Textual support number: 3 OBS
Puisque ce cycle fut établi par le Français Alphonse Beau de Rochas, il porte en France, le nom de son inventeur. Toutefois, puisque l’Allemand Nikolaus Otto industrialisa le premier moteur fonctionnant selon ce principe, ce cycle s’appelle ailleurs et surtout en Amérique du Nord, «cycle d’Otto». 5, record 3, French, - cycle%20%C3%A0%20quatre%20temps
Record number: 3, Textual support number: 4 OBS
cycle à quatre temps; cycle Beau de Rochas : termes uniformisés par le Comité du projet de lexiques (Nouveau-Brunswick). 5, record 3, French, - cycle%20%C3%A0%20quatre%20temps
Record 3, Key term(s)
- cycle à 4 temps
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2010-08-05
Record 4, English
Record 4, Subject field(s)
- Skydiving, Paragliding and Hang Gliding
Record 4, Main entry term, English
- 4-way sequential
1, record 4, English, 4%2Dway%20sequential
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- four-man sequential event 2, record 4, English, four%2Dman%20sequential%20event
correct
- four-way sequence 3, record 4, English, four%2Dway%20sequence
correct
- four-way sequential event 2, record 4, English, four%2Dway%20sequential%20event
correct
- 4-way sequence 4, record 4, English, 4%2Dway%20sequence
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
The 4-way sequence is performed within a time limit of 2.30 min, during which the teammmates make and repeat as many times as possible a series of 4 or 5 required figures drawn by lot. 4, record 4, English, - 4%2Dway%20sequential
Record number: 4, Textual support number: 2 CONT
A more intricate type of canopy flying, 4-way Sequential is the sport of building a sequence of different formation in an aerial ballet of parachutes. 1, record 4, English, - 4%2Dway%20sequential
Record 4, French
Record 4, Domaine(s)
- Parachutisme, parapente et deltaplane
Record 4, Main entry term, French
- séquence à quatre
1, record 4, French, s%C3%A9quence%20%C3%A0%20quatre
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- séquence à 4 2, record 4, French, s%C3%A9quence%20%C3%A0%204
correct, feminine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
La séquence à 4 s’effectue dans un temps limité de 2 min 30, au cours desquelles les équipiers réalisent et répètent autant de fois qu'il leur est possible un cycle de 4 à 5 figures imposées tirées au sort. 2, record 4, French, - s%C3%A9quence%20%C3%A0%20quatre
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 1975-03-11
Record 5, English
Record 5, Subject field(s)
- Engines (Motor Vehicles)
- Motors (Machinery)
Record 5, Main entry term, English
- enter the cylinder
1, record 5, English, enter%20the%20cylinder
verb
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 OBS
on the intake stroke, the intake valve has opened. The piston is moving down, and a mixture of air and gasoline is entering the cylinder through the valve port. 1, record 5, English, - enter%20the%20cylinder
Record 5, French
Record 5, Domaine(s)
- Moteur (Véhicules automobiles)
- Moteurs mécaniques
Record 5, Main entry term, French
- être admis dans le cylindre 1, record 5, French, %C3%AAtre%20admis%20dans%20le%20cylindre
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 OBS
admission. 1er temps du cycle à 4 temps pendant lequel les gaz carburés aspirés par le piston sont admis dans le cylindre. 1, record 5, French, - %C3%AAtre%20admis%20dans%20le%20cylindre
Record 5, Spanish
Record 5, 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: