sulphite
nounUK /ˈsʌlfaɪt/
US /ˈsʌlfaɪt/
A sulphite is a chemical made from sulphur that is often used to keep food fresh.
Wine often contains sulphites to stop it from going bad.
RELATED WORDS
OTHER MEANINGS
2. A salt or ester of sulphurous acid.
Sodium sulphite is used in some industrial processes.
3. A substance added to food or drink to prevent spoiling.
Dried fruit is often treated with sulphites.
4. A chemical that can cause allergic reactions in some people.
She checks labels because sulphites make her sneeze.