refiner
nounUK /rɪˈfaɪnə/
US /rɪˈfaɪnər/
A refiner is a person or machine that makes something clean and pure.
The sugar refiner turned raw sugar into white crystals.
RELATED WORDS
OTHER MEANINGS
2. A person who makes something better or more polished.
She is a refiner of young writers' skills.
3. A machine used to make metal or oil pure.
The oil refiner separates crude oil into useful parts.
4. A worker in a factory that cleans raw materials.
The refiner checked the gold after it was heated.