TERMIUM Plus®

From: Translation Bureau

On social media

Consult the Government of Canada’s terminology data bank.

DECOUPLING TIME [1 record]

Record 1 1995-06-19

English

Subject field(s)
  • Astrophysics and Cosmography
CONT

George Gamow argued in 1948 that there would exist a characteristic, universal decoupling time at which the universe would change from being radiation-dominated to matter-dominated and hence would become transparent to radiation.

CONT

Because all the light from earlier times was scrambled by matter, the electromagnetic radiation that escaped at the time of decoupling, and which has been shining more or less unimpeded since then, is the earliest thing we can ever hope to see decoupling the light from the edge of the visible universe.

French

Domaine(s)
  • Astrophysique et cosmographie
DEF

C'est l'instant, dans l'histoire de l'Univers, où la matière (baryons et électrons) et le rayonnement électromagnétique ont cessé d'être couplés. Ils ont alors suivi des évolutions indépendantes.

Spanish

Save record 1

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: