TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

AMPLITUDE FLUCTUATION [3 records]

Record 1 2020-07-22

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

A winter fluctuation in the amplitude of a pattern characterized by low surface pressure in the Arctic and strong mid-latitude westerlies.

CONT

AO phases are analogous to the Southern Hemisphere’s Antarctic oscillation (AAO), a similar pattern of air pressure and jet stream anomalies in the Southern Hemisphere. Viewed from above either pole, these patterns show a characteristic ring-shape or "annular" pattern; thus, AO and AAO are also referred to as the northern annular mode (NAM) and southern annular mode (SAM), respectively.

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
DEF

Fluctuation hivernale de l'amplitude d'une configuration caractérisée par de basses pressions en surface dans l'Arctique et de forts vents d'ouest aux latitudes moyennes.

OBS

AO; NAM : acronymes des termes anglais «Arctic oscillation» et «northern annular mode».

Spanish

Save record 1

Record 2 1988-11-27

English

Subject field(s)
  • Acoustics (Physics)
  • Hearing
OBS

the tympanic membrane is made to vibrate in synchrony with the sound pressure change, with an amplitude dependent on their magnitude. [Also called sound pressure fluctuation p. 52]

French

Domaine(s)
  • Acoustique (Physique)
  • Ouïe
OBS

(...) le tympan tendu sur un volume généralement clos est sensible aux variations de pression provoquées par exemple par l'arrivée d'une onde acoustique.

Spanish

Save record 2

Record 3 1985-10-01

English

Subject field(s)
  • Optics
DEF

Relative amplitude of the periodic fluctuation of luminous intensity as measured by the ratio of the difference between the maximum and the minimum luminous intensity, to the maximum value...

CONT

amplitude of fluctuation of the luminous intensity of a source run on alternating current.

French

Domaine(s)
  • Optique
DEF

Amplitude relative de la fluctuation périodique de l'intensité lumineuse, mesurée par le rapport de la différence entre le maximum et le minimum de l'intensité lumineuse, à la valeur de ce maximum (...)

CONT

amplitude de fluctuation de l'intensité lumineuse d'une source alimentée par un courant alternatif (...)

Spanish

Save record 3

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2024
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: