sulphate
nounUK /ˈsʌlfeɪt/
US /ˈsʌlfeɪt/
A sulphate is a kind of salt made with sulphur and oxygen.
The doctor said the water contains a small amount of sulphate.
RELATED WORDS
OTHER MEANINGS
2. A salt or ester of sulfuric acid, used in many industrial processes.
Copper sulphate is often used in chemistry lessons.
3. A compound added to products such as shampoo to help them clean.
This shampoo is free of sulphate, so it is gentler on the scalp.
4. A form of sulphur found in rocks and soil.
Farmers tested the soil for sulphate before planting.