TERMIUM Plus®

From: Translation Bureau

On social media

Consult the Government of Canada’s terminology data bank.

POLYATOMIC [7 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2010-11-26

English

Subject field(s)
  • Chemical Elements and Compounds
  • Atomic Physics

French

Domaine(s)
  • Éléments et composés chimiques
  • Physique atomique

Spanish

Save record 1

Record 2 2007-07-04

English

Subject field(s)
  • Atomic Physics
  • Semiconductors (Electronics)
DEF

An element which consists of a single atom.

CONT

The term "molecular beam" refers to beams of monoatomic species as well as polyatomic species. The term molecular beam deposition thus includes epitaxial growth as well as includes nonepitaxial growth processes.

OBS

Helium and argon are monoatomic gases.

French

Domaine(s)
  • Physique atomique
  • Semi-conducteurs (Électronique)
DEF

Élément formé d'un seul atome.

OBS

L'hélium et l'argon sont des gaz monoatomiques.

Spanish

Save record 2

Record 3 2003-09-09

English

Subject field(s)
  • Atomic Physics

French

Domaine(s)
  • Physique atomique

Spanish

Campo(s) temático(s)
  • Física atómica
Save record 3

Record 4 1999-10-09

English

Subject field(s)
  • Chemistry
DEF

In a polyatomic molecule, the relationship of two vibrational levels that have in zero approximation nearly the same energy; they repel each other, and the eigenfunctions of the two states mix.

OBS

As a proper noun, Fermi is always capitalized.

French

Domaine(s)
  • Chimie
DEF

Coïncidence fortuite de deux niveaux de vibration dans une molécule polyatomique (dégénérescence accidentelle). Leur interaction, due à l'anharmonicité du potentiel des forces intramoléculaires, entraîne une séparation de leurs énergies.

Spanish

Save record 4

Record 5 1996-11-21

English

Subject field(s)
  • Chemistry
DEF

The atom(or group of atoms) in a polyatomic radical on which an unpaired electron is largely localized.

Key term(s)
  • radical center

French

Domaine(s)
  • Chimie
DEF

Atome ou groupe d'atomes d'un radical polyatomique sur lequel un électron célibataire est en grande partie localisé.

OBS

La fixation d'un atome monovalent à un centre radicalaire conduit à une molécule pouvant être décrite par une formule de Lewis où chaque atome possède une valence normale stable.

Spanish

Save record 5

Record 6 1993-11-16

English

Subject field(s)
  • Biochemistry
DEF

In a polyatomic molecule, the angle formed by the lines connecting one nucleus with two others, that is, the angle between two chemical bonds.

CONT

Bond angles and center-to-center bond lengths in organic molecules are best shown with ball-and-stick models, whereas the outer contours of organic molecules are best shown by spacefilling models, which are proportional in dimensions to the radius of different atoms.

French

Domaine(s)
  • Biochimie
CONT

Les angles de liaison et la distance de centre à centre d'une molécule organique sont bien représentées par les modèles éclatés, tandis que les contours extérieurs des molécules organiques le sont mieux par des modèles compacts.

Spanish

Save record 6

Record 7 1993-07-31

English

Subject field(s)
  • Atomic Physics
DEF

Of or relating to transitions between molecular energy states when modified by vibrational energy.

CONT

In an earlier paper, we considered the problem of intensities of electronic-totally symmetric vibrational bands in the electronic spectra of polyatomic molecules when one and the same vibrational motion may effect vibronic perturbations and at the same time form progressions by reason of a change in origin from initial to final electronic state.

French

Domaine(s)
  • Physique atomique
DEF

Se dit d'une énergie à composantes vibrationnelle et électronique.

CONT

La haute résolution spectrale est également essentielle pour la détermination précise des paramètres structuraux des états électroniques excités car ces données proviennent de l'analyse de la structure de rotation des bandes vibroniques du spectre électronique moléculaire.

Spanish

Save record 7

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

Display options

Change the order of display of the official languages of Canada
Option to display the non-official languages (Spanish or Portuguese)
Display definitions, contexts, etc., on records

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: