Longman Dictionary of Contemporary English homepage

Topic: INDUSTRY

refine

 verb
     
re‧fine [transitive]
1 to improve a method, plan, system etc by gradually making slight changes to it:
Car makers are constantly refining their designs.
2TI to make a substance purer using an industrial process:
oil refining
Definition of refine from the Longman Dictionary of Contemporary English within
the topic INDUSTRY
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