Noah Webster's Dictionary (n.) One who, or that which, purifies or cleanses; a cleanser; a refiner.

Multi-Version Concordance Purifier (1 Occurrence) Malachi 3:3 and he will sit as a refiner and purifier of silver, and he will purify the sons of Levi, and refine them as gold and silver; and they shall offer to Yahweh offerings in righteousness. (WEB KJV JPS ASV DBY WBS YLT NAS RSV NIV)