Longman Dictionary of Contemporary English homepage

refined

adjective
     
Related topics: Industry
re‧fined
1 [usually before noun]TI a substance that is refined has been made pure by an industrial process [↪ raw, crude; ≠ unrefined]
2 someone who is refined is polite and seems to be well-educated or to belong to a high social class - sometimes used humorously:
a refined way of speaking
3 a method or process that is refined has been improved to make it more effective [↪ sophisticated]:
Laser surgery has become much more refined over the last decade.

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