refine

Stedman's Medical Dictionary: A Practical Medical Dictionary · 1920 · p. 29

(re-fin') [L. re-, again, finire, to finish.] To free from impurities.

Bu kavram başka kaynaklarda da geçiyor

Webster's Condensed Dictionary- A Condensed Dictionary of the English Language (1909)
Chamber's Twientieth Century Dictionary (1908)
The Student's Medical Dictionary (1896)

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