TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
CONSTITUANT SOURCE [1 record]
Record 1 - internal organization data 1990-05-28
Record 1, English
Record 1, Subject field(s)
- Air Pollution
Record 1, Main entry term, English
- source species
1, record 1, English, source%20species
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- source 2, record 1, English, source
correct
- source constituent 1, record 1, English, source%20constituent
correct
- source substance 1, record 1, English, source%20substance
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The three main catalytic cycles thought to be active in the atmosphere are shown below the production cycle: The most important one in the natural stratosphere is the nitrogen system, the source being nitrous oxide and the sink nitric acid. It is now thought to account for about 70% of the high-level ozone destruction. 2, record 1, English, - source%20species
Record 1, French
Record 1, Domaine(s)
- Pollution de l'air
Record 1, Main entry term, French
- espèce source
1, record 1, French, esp%C3%A8ce%20source
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- constituant source 1, record 1, French, constituant%20source
correct, masculine noun
- source 2, record 1, French, source
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Espèce chimique qui, après son émission dans l'atmosphère et sa photodissociation dans la stratosphère, représente un danger immédiat pour l'ozone. 2, record 1, French, - esp%C3%A8ce%20source
Record number: 1, Textual support number: 1 OBS
Les composés chlorés, qui remontent vers la stratosphère, les hydrocarbures chlorés, qui sont détruits par photodissociation dans la haute atmosphère, et le méthane, qui est produit naturellement, sont des espèces sources. 2, record 1, French, - esp%C3%A8ce%20source
Record number: 1, Textual support number: 1 CONT
Le comportement des constituants chimiquement actifs est régi par un cycle qui fait intervenir 1) des espèces [sources] (CH4, H20, N20, chlorofluorocarbones ou CFC) détruites dans la stratosphère par le rayonnement solaire intense ; 2) des espèces [réservoirs] couplant entre elles les différentes familles de constituants (...) 3) des espèces [puits] constituées par les formes acides (peroxyde d'hydrogène H202, acide nitrique HN03, acide chlorhydrique HC1). 1, record 1, French, - esp%C3%A8ce%20source
Record 1, Spanish
Record 1, 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: