simple past and past participle of refine
The raw petroleum was refined into kerosene.
Precise, freed from imprecision
Cultured, freed from vulgarity
The refined form of a commodity, as opposed to its raw or generic form.
We're still purchasing copper ore, but the market for refined is weaker.
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In the British Isles, Oxbridge is considered refined; Geordie somewhat less so.
Purified, reduced in or freed from impurities
Under current guidelines, refined sugar must be at least five times purer than its raw counterpart.