halide
halide — noun
1. a chemical formed when a halogen, such as chlorine, bromine, or iodine, joins wi
a chemical formed when a halogen, such as chlorine, bromine, or iodine, joins with another element that gives up electrons more easily, for example sodium or silver.
Greta studied how silver halide crystals react to light in old photographic film.
collocation: silver halide (photography context)
Common table salt is a halide of sodium, formed when sodium bonds with chlorine.
pattern: a halide of [electropositive element]
The chemistry students at Tariq's school prepared a potassium halide solution for the experiment.
Metal halide lamps give off a bright white light and are often used in stadiums.
Hugo warned the class that some halides can stain skin and clothes permanently.
- halogen compound
more descriptive lay term; halide is the specific chemistry term
- halogen salt
applies when the halide is ionic (e.g. sodium chloride); not all halides are salts
文法句型
a halide of [element]
用法筆記
Almost always appears in scientific or technical writing. Often preceded by the name of the electropositive partner ('silver halide', 'potassium halide', 'metal halide') rather than standing alone.