TERMIUM Plus®

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

BASIQUE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-01-05

English

Subject field(s)
  • Chemical Elements and Compounds
DEF

Of a chemical species that has the properties of a base.

OBS

A base in chemistry is a substance that can accept hydrogen ions or more generally, donate electron pairs. A soluble base is referred to as an alkali if it contains and releases hydroxide ions (OH−) quantitatively. The Brønsted-Lowry theory defines bases as proton (hydrogen ion) acceptors, while the more general Lewis theory defines bases as electron pair donors, allowing other Lewis acids than protons to be included.

French

Domaine(s)
  • Éléments et composés chimiques
DEF

Se dit des substances pouvant libérer des anions OH-.

OBS

L'adjectif basique est correctement utilisé en français pour désigner un sel basique qui peut formellement libérer un anion OH-. Il est fortement déconseillé de l'utiliser en français dans le cas d'un sel acide contenant un ou plusieurs cations H+; on doit donc éviter les noms tels que «phosphate de sodium dibasique» et «phosphate basique de disodium» qui sont des anglicismes de mauvais aloi.

Spanish

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Record 2 2009-01-22

English

Subject field(s)
  • Petrography
  • Geochemistry
DEF

Said of an igneous rock having a relatively low silica content, sometimes delimited arbitrarily as 44 to 51% to 45 to 52% ...

OBS

basic: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Pétrographie
  • Géochimie
DEF

Se dit d'une roche magmatique pauvre en SiO2 (45 à 52 % en poids) et riche en Mg, Fe et Ca (de 20 à 35 %).

OBS

L'«acidité» d'une roche est liée à sa teneur en silice [...] les roches dites basiques en contiennent environ 50 %.

OBS

basique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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