TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
D.-V [2 records]
Record 1 - internal organization data 2023-03-08
Record 1, English
Record 1, Subject field(s)
- Biochemistry
- Environment
- Nuclear Science and Technology
Record 1, Main entry term, English
- biological half-life
1, record 1, English, biological%20half%2Dlife
correct, standardized
Record 1, Abbreviations, English
Record 1, Synonyms, English
- biological half-time 2, record 1, English, biological%20half%2Dtime
correct
- half-life 4, record 1, English, half%2Dlife
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The time required for the amount of a particular substance in a biological system to be reduced to one-half of its value by biological processes ... 5, record 1, English, - biological%20half%2Dlife
Record number: 1, Textual support number: 1 OBS
biological half-life: designation standardized by ISO in 1997. 6, record 1, English, - biological%20half%2Dlife
Record number: 1, Textual support number: 2 OBS
biological half-life: designation extracted from the "Glossaire de l'énergie nucléaire" and reproduced with permission of the Organisation for Economic Co-operation and Development. 6, record 1, English, - biological%20half%2Dlife
Record 1, French
Record 1, Domaine(s)
- Biochimie
- Environnement
- Sciences et techniques nucléaires
Record 1, Main entry term, French
- période biologique
1, record 1, French, p%C3%A9riode%20biologique
correct, feminine noun, standardized
Record 1, Abbreviations, French
Record 1, Synonyms, French
- demi-vie biologique 3, record 1, French, demi%2Dvie%20biologique
correct, feminine noun, standardized
- demi-vie 4, record 1, French, demi%2Dvie
correct, feminine noun
- d.-v 5, record 1, French, d%2E%2Dv
feminine noun
- d.-v 5, record 1, French, d%2E%2Dv
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Temps nécessaire pour que la quantité d’une substance déterminée présente dans un système biologique soit réduite de moitié par des processus biologiques [...] 6, record 1, French, - p%C3%A9riode%20biologique
Record number: 1, Textual support number: 1 OBS
période biologique; demi-vie biologique : désignations normalisées par l’ISO en 1997. 7, record 1, French, - p%C3%A9riode%20biologique
Record number: 1, Textual support number: 2 OBS
période biologique : désignation extraite du «Glossaire de l’énergie nucléaire» et reproduit avec l’autorisation de l’Organisation de coopération et de développement économiques. 7, record 1, French, - p%C3%A9riode%20biologique
Record number: 1, Textual support number: 3 OBS
demi-vie : désignation publiée dans le Journal officiel de la République française le 8 octobre 2003. 7, record 1, French, - p%C3%A9riode%20biologique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Bioquímica
- Medio ambiente
- Ciencia y tecnología nucleares
Record 1, Main entry term, Spanish
- vida media biológica
1, record 1, Spanish, vida%20media%20biol%C3%B3gica
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- semivida biológica 2, record 1, Spanish, semivida%20biol%C3%B3gica
correct, feminine noun
- período biológico 3, record 1, Spanish, per%C3%ADodo%20biol%C3%B3gico
correct, masculine noun
- vida media 4, record 1, Spanish, vida%20media
correct, feminine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Tiempo requerido para que la cantidad de una sustancia específica presente en un sistema biológico sea reducida a la mitad de su valor, mediante procesos biológicos, cuando el ritmo de eliminación es aproximadamente exponencial. 5, record 1, Spanish, - vida%20media%20biol%C3%B3gica
Record 2 - external organization data 2014-10-30
Record 2, English
Record 2, Subject field(s)
- Compartment - Canadian Nuclear Safety Commission
- Biochemistry
- Pharmacodynamics
- Environment
Record 2, Main entry term, English
- half-life
1, record 2, English, half%2Dlife
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- biological half-life 2, record 2, English, biological%20half%2Dlife
correct
- biological halflife 3, record 2, English, biological%20halflife
- half-time 4, record 2, English, half%2Dtime
- biological half-time 5, record 2, English, biological%20half%2Dtime
- elimination half-life 6, record 2, English, elimination%20half%2Dlife
- half-time for elimination 7, record 2, English, half%2Dtime%20for%20elimination
- time of half-elimination 7, record 2, English, time%20of%20half%2Delimination
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The period of time for a chemical substance to lose half its concentration or activity due to metabolic uptake, decay or other chemical change. 8, record 2, English, - half%2Dlife
Record number: 2, Textual support number: 1 CONT
Industrial applications require generally robust enzymes with a long half-life under process conditions. 9, record 2, English, - half%2Dlife
Record number: 2, Textual support number: 2 CONT
... the half-time of PCBs [polychlorinated biphenyl] in soil has been estimated at 5 years. 4, record 2, English, - half%2Dlife
Record number: 2, Textual support number: 1 OBS
In the pollution field, means the time necessary for half the amount of pollutants to lose their polluting effect on the environment. 8, record 2, English, - half%2Dlife
Record 2, French
Record 2, Domaine(s)
- Tiroir - Commission canadienne de sûreté nucléaire
- Biochimie
- Pharmacodynamie
- Environnement
Record 2, Main entry term, French
- demi-vie
1, record 2, French, demi%2Dvie
correct, feminine noun
Record 2, Abbreviations, French
- d.-v 2, record 2, French, d%2E%2Dv
feminine noun
Record 2, Synonyms, French
- demi-vie biologique 3, record 2, French, demi%2Dvie%20biologique
correct, feminine noun
- période biologique 4, record 2, French, p%C3%A9riode%20biologique
feminine noun
- T biol 5, record 2, French, T%20biol
feminine noun
- T biol 5, record 2, French, T%20biol
- demi-période biologique 6, record 2, French, demi%2Dp%C3%A9riode%20biologique
feminine noun
- demi-vie d’élimination 7, record 2, French, demi%2Dvie%20d%26rsquo%3B%C3%A9limination
feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Durée nécessaire à la disparition de la moitié d’une substance soumise [à un] processus de biodégradation. 3, record 2, French, - demi%2Dvie
Record number: 2, Textual support number: 1 CONT
La demi-vie des molécules d’insuline dans le sang n’est que d’environ trois à quatre minutes; la libération d’insuline à partir du pancréas est ainsi tout à fait responsable des fluctuations des concentrations du glucose sanguin. 8, record 2, French, - demi%2Dvie
Record number: 2, Textual support number: 2 CONT
Certains congénères [de BPC (biphényle polychloré)] à teneur en chlore élevée persistent longtemps dans l’environnement (demi-vie de plus de 2 ans) [...] 9, record 2, French, - demi%2Dvie
Record 2, Spanish
Record 2, 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: