sulfite

noun
UK /ˈsʌlfaɪt/
US /ˈsʌlfaɪt/

A sulfite is a kind of chemical that is made from sulfur and oxygen.

Some dried fruits have sulfites added to keep them fresh.


OTHER MEANINGS

2. A salt or ester of sulfurous acid, used in winemaking and food preservation.

Winemakers add sulfites to stop wine from spoiling.

3. A compound that can cause allergic reactions in some people.

She checks labels because she is sensitive to sulfites.

4. An ion with the formula SO3²⁻.

The sulfite ion has one sulfur atom and three oxygen atoms.