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English definition of “refinement”

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refinement

noun [C/U]  /rɪˈfɑɪn·mənt/ us  
the process of improving something: [C] The accuracy of the machine has been increased through a number of refinements. [U] The refinement of sugar cane produces sugar. Refinement also means means the quality of politeness seen in someone's behavior: [U] She grew up in a home environment of culture and refinement.
(Definition of refinement from the Cambridge Academic Content Dictionary © Cambridge University Press)
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