refine
verb
[ rɪˈfʌɪn ]
• remove impurities or unwanted elements from (a substance), typically as part of an industrial process.
• "sugar was refined by boiling it in huge iron vats"
Similar:
purify,
clarify,
clear,
cleanse,
strain,
sift,
filter,
rarefy,
distil,
concentrate,
process,
treat,
rectify,
Origin:
late 16th century: from re- ‘again’ + the verb fine1, influenced by French raffiner .
