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English definition of “refinement”

refinement

noun uk   /rɪˈfaɪn.mənt/ us  

refinement noun (CHANGE)

[U] the process of making a substance pure: The refinement of raw opium yields other drugs, such as morphine. [C or U] a small change that improves something: These refinements have increased the machine's accuracy by 25 percent. Clearly, the hypothesis does need some refinement, in the light of these surprising results.

refinement noun (POLITENESS)

[U] a quality of politeness and education: She's the personification of culture and refinement.
(Definition of refinement from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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