n. One who refines liquors, sugar, metals, etc.n. An improver in purity and elegance.n. An inventor of superfluous subtleties; one who is overnice in discrimination, or in argument, reasoning, philosophy, etc.n. One who indulges in excessive compliment; one who is over-civil; a flatterer.n. An apparatus for refining; specifically, in England, a gas-purifier.