plural of refiner

Agent noun of refine; one who, or that which, refines.

The act, or the result of refining; the removal of impurities, or a purified material / High-class style; cultivation. / A fine or subtle distinction.

(transitive) To purify; reduce to a fine, unmixed, or pure state; to free from impurities. / (intransitive) To become pure; to be cleared of impure matter.

simple past tense and past participle of refine

(of people, obsolete) Sagacious, sometimes (derogatory) oversubtle or feigning sagacity. / (of thought) Subtle, scrupulous, carefully thought out. / (of processes) Developed, improved.

(finance) The refined form of a commodity, as opposed to its raw or generic form.

plural of refinement

Refinement (process of refining)

present participle of refine